Clin Chem MediaLab
Which of the following blood tests is used in the evaluation of hepatic disease? Please select the single best answer Amylase Alanine aminotransferase (ALT or SGPT) Creatinine Alkaline phosphatase (ALP)
Alanine aminotransferase (ALT or SGPT)
The Emergency Department has collected blood test tubes for potassium, albumin, plasma hemoglobin, and acid phosphatase. Which of these test results will NOT be negatively affected if the blood tube is sent by the hospital's pneumatic tube system? Please select the single best answer Albumin Plasma hemoglobin Potassium Acid phosphatase
Albumin
EDTA and Sodium citrate combine with _________ to inhibit coagulation in blood samples. Please select the single best answer Potassium Calcium Magnesium Sodium
Calcium
Which of the following tests would be most affected by microclots in an EDTA tube drawn for a CBC? Please select the single best answer RBC Hematocrit Hemoglobin Platelet count
Platelet count
Pheochromocytoma is a tumor of the adrenal medulla that results in elevated urinary levels of all the following EXCEPT: Please select the single best answer Cortisol Free catecholamines Metanephrines Vanillylmandelic acid
Cortisol
Which of the following instruments measures the amount of electricity passing between two electrodes? Please select the single best answer Osmometer Coulometer Nephelometer Spectrophotometer
Coulometer
Which of the following analytes would be increased due to delay in centrifugation? Please select the single best answer Creatinine Ionized Calcium Folate Bicarbonate
Creatinine
In which of the following condition(s) would an increased serum osmolality be an expected finding? Please select the single best answer Increased arginine vasopressin hormone (AVP formerly ADH) secretion Diabetes insipidus Hyponatremia Acute myocardial infarction
Diabetes insipidus
To properly use a volumetric pipette calibrated "to deliver" (TD), one should: Please select the single best answer Let the pipette drain in a vertical position and blow out the last drop. Drain the contents in the vertical position but do not blow out. Drain the pipette after rinsing out the contents several times and blow out the last drop. Contain a specified amount of liquid but are not necessarily calibrated to deliver that exact amount.
Drain the contents in the vertical position but do not blow out.
Zollinger-Ellison syndrome is characterized by a large (usually 20-fold) elevation of: Please select the single best answer Cholecystokinin Pepsin Glucagon Gastrin
Gastrin
GGT (gamma-glutamyltransferase) is an enzyme found in many body tissues including the kidney, prostate, brain, pancreas, and liver, however, its clinical applications is confined to the evaluation of what system? Please select the single best answer Pancreas Liver Kidney Brain
Liver
A 46-year-old woman was admitted to the hospital through the emergency room after having a bout of severe diarrhea for 3 days along with headaches, muscle aches, shortness of breath, and an increased heart rate. Blood gas measurements were ordered by her concerned physician. The results showed the following: pH = 7.30 pCO2 = 32 mm Hg HCO3- = 15 mmol/L pO2 = 93 mmol/L What acid-base disorder is most consistent with this patient's results and symptoms? Please select the single best answer Respiratory acidosis Respiratory alkalosis Metabolic acidosis Metabolic alkalosis
Metabolic acidosis
Which of the following electrolytes is most likely to be spuriously elevated in a hemolyzed specimen? Please select the single best answer Sodium Potassium Chloride BUN
Potassium
Safety regulations in the clinical laboratory fall under which government agency? Please select the single best answer Centers for Disease Control College of American Pathologists Food and Drug Administration Occupational Safety and Health Administration
Occupational Safety and Health Administration
The preparation of a Levey-Jennings quality control chart for any constituent of serum requires: Please select the single best answer A minimum of 20-30 analyses of control serum over a period of 20-30 days. 20-30 analyses of control serum on one day, one batch. Daily analyses for 1 month with the use of aliquots from more than one lot control serum. 20-30 analyses performed by one person.
A minimum of 20-30 analyses of control serum over a period of 20-30 days.
The migration rate of proteins on cellulose acetate is primarily the result of: Please select the single best answer Molecular content of the protein Ionic charge on the proteins Concentration of the proteins Type of proteins
Ionic charge on the proteins
Which of these processes would be characteristic of "Lean" laboratory production? Please select the single best answer Hold routine specimens in the specimen processing area until all phlebotomists have completed their morning rounds. Process and deliver patient samples to the testing areas in batches. Load patient samples onto automated analyzers as the samples arrive to the work area. Techs constantly leaving their workstation to locate regularly used supplies for their bench.
Load patient samples onto automated analyzers as the samples arrive to the work area.
When flammable chemicals or grease are involved, what is the appropriate fire designation? Please select the single best answer Class A Class B Class C Class D
Class B
Which of the following enzymes is the most sensitive indicator of long term liver damage associated with alcohol ingestion: Please select the single best answer Gamma-glutamyl transpeptidase (GGT) Alanine transaminase (ALT) Aspartate transaminase (AST) Lactate dehydrogenase (LDH)
Gamma-glutamyl transpeptidase (GGT)
Hydrogen ion concentration (pH) in blood is usually determined by means of which of the following electrodes? Please select the single best answer Silver Glass Platinum Gold
Glass
Which of the following terms is used to identify an individual who has enough Six Sigma training to participate on a performance improvement team or lead small-scale projects within his/her work unit, but does not work on Six Sigma projects full-time? Please select the single best answer Green belt Black belt Master black belt Sponsor
Green belt
Six months ago, a 55-year-old female had a fasting plasma glucose (FPG) greater than 200 mg/dL on two occasions. She was diagnosed as having type 2 diabetes and treatment was started. Along with routine FPG's which of the following tests would most likely be used to monitor glycemic control? Please select the single best answer HbA1C Insulin C-peptide Urine glucose
HbA1C
In healthy individuals, calcitonin is synthesized by which cells in the body? Please select the single best answer Hepatocytes Leukocytes Thyroid C cells Red blood cells
Thyroid C cells
How many milliliters of 3N solution can be made from 50g of CaCl2? Please select the single best answer 150 mL 300 mL 3333 mL 6666 mL
300 mL
What is the normality of 32.1% HCl? (HCl has a positive valence of 1) Please select the single best answer 3.2N 8.8N 11.2N 15.7N
8.8N
Calculate the specificity for the following medical research project completed by a manufacturer: Test Results Positive Negative Disease 984 7 No Disease 16 873 Please select the single best answer 98.2% 98.4% 99.1% 99.99%
98.2% true neg/(true neg + false pos)
MOST of the carbon dioxide present in the blood is in the form of: Please select the single best answer Bicarbonate Carbonate Carbonic acid Dissolved CO2
Bicarbonate
How would you CORRECTLY prepare 100 mL of 0.9% isotonic saline (NaCl: GMW = 58.45)? Please select the single best answer 0.9 grams in 100 mL distilled water 9.0 grams in 100 mL distilled water 0.526 grams in 100 mL distilled water 5.84 grams in 100 mL distilled water
0.9 grams in 100 mL distilled water
Toxic levels of lithium can cause lethargy, apathy, muscle weakness up to and including seizures and coma. What is the toxic level of lithium? Please select the single best answer 0.5-1.2 mmol/L 1.2-1.5 mmol/L 1.5-2 mmol/L >2 mmol/L
1.5-2 mmol/L
What is the approximate time that should be allowed for samples to completely clot before centrifugation for serum samples? Please select the single best answer 5 minutes 10 minutes 15 minutes 20 minutes
20 minutes
What is the formula for calculating transferrin saturation (TS)? (Serum iron/TIBC) X 100 (Serum ferritin/TIBC) X 100 TIBC/serum iron Serum iron/serum ferritin
(Serum iron/TIBC) X 100 L5
What is the normality (N) of a 700 mL solution that contains 5 g of H2SO4 (gmw=98 g/mol, valence=2)? Please select the single best answer 0.146 N 0.00014 N 0.023 N 0.841 N
0.146 N
Convert 0.9% NaCl to molarity. Please select the single best answer 0.15M 0.25M 0.39M 1.50M
0.15M
Which of the following best defines "specificity": Please select the single best answer A test's ability to correctly identify individuals who have a given disease or disorder. A test's ability to correctly exclude individuals who do not have the given disease or disorder. Ability of a test to detect small amounts of a substance or to measure a reaction. The measurement or detection of a select substance provides important information about an illness or about health status that assists in the diagnosis, treatment, or monitoring of a patient.
A test's ability to correctly exclude individuals who do not have the given disease or disorder.
All of the following factors affect hybridization, EXCEPT: Please select the single best answer G:C content A:T content pH Temperature
A:T content
Which of the following analytes would be increased due to delay in centrifugation? Please select the single best answer Bicarbonate AST Glucose Ionized Calcium
AST
A hepatic function panel A consists of which of the following tests? Please select the single best answer AST, ALT, Alkaline Phosphatase, Total Protein, Albumin, Total Bilirubin, Direct Bilirubin Glucose, BUN, Creatinine, Sodium, Potassium, Chloride, CO2, Calcium Cholesterol, Lipoprotein, HDL, Triglycerides Potassium, Sodium, Chloride, CO2
AST, ALT, Alkaline Phosphatase, Total Protein, Albumin, Total Bilirubin, Direct Bilirubin
How can a phlebotomist help to reduce pre-analytical variability associated with sample collection? Please select the single best answer Avoid keeping the tourniquet applied for a prolonged period of time. Select a needle gauge that is appropriate for the size of the evacuated blood tube used. Avoid collecting blood from an arm that is receiving an intravenous (IV) solution. All of these techniques help to minimize the pre-analytical variability related to sample collection.
All of these techniques help to minimize the pre-analytical variability related to sample collection.
Heparin interacts with _____________, which subsequently inhibits thrombin. Please select the single best answer Red blood cells White blood cells Antithrombin III Protein C
Antithrombin III
The impedance principle shown in this illustration is best described by the following statement: Please select the single best answer Blood cells and platelets are counted by the number of the times they scatter light as they pass in front of a mirror. Blood cells and platelets are counted utilizing a type of diffraction gradient technique. Blood cells and platelets are counted by measuring the drop in transmitted light as they pass through a series of apertures. Blood cells or other particles are counted and sized based on changes in electrical resistance as they pass between two electrodes.
Blood cells or other particles are counted and sized based on changes in electrical resistance as they pass between two electrodes.
To assess drug concentrations during the trough phase, blood should be drawn: Please select the single best answer About one 15 minutes after the administration of an oral dose of the drug. Immediately before the next dose is given. About three hours after the administration of an oral dose of the drug. About an hour before the administration of an oral dose of the drug.
Immediately before the next dose is given.
What is the correct method employers must notify employees regarding the results of formaldehyde monitoring? Please select the single best answer Individually in writing or by posting the results in an appropriate location that is accessible to employees. Employers are not required to report to employees. During the annual performance review meeting. Posting information on the Employer's Facebook page.
Individually in writing or by posting the results in an appropriate location that is accessible to employees.
Which of the following is most likely to interfere with the measurement of hemoglobin? Please select the single best answer Leukocytopenia EDTA Heparin Lipemia
Lipemia
Which of the following statements is true regarding cardiovascular disease and adipose tissue? Please select the single best answer Inflammatory cytokines, synthesized and released by adipose tissue, contribute to the development of cardiovascular disease. Increased synthesis and secretion of PAI-1 in metabolic syndrome contributes to cardiovascular disease by increasing blood pressure. Obesity in metabolic syndrome contributes to the development of cardiovascular disease by increased synthesis and secretion of adiponectin. There is no correlation between the amount of adipose tissue and cardiovascular disease.
Inflammatory cytokines, synthesized and released by adipose tissue, contribute to the development of cardiovascular disease.
Which of the following must be included as part of a PCR in order to quantify unknown samples? Please select the single best answer Positive control Negative Control Internal Control Standards
Standards
Which of the following tests require a 72-hour stool (fecal) collection? Please select the single best answer Occult blood Quantitative fecal fat Ova and Parasite (O&P) Stool culture
Quantitative fecal fat
All of the following are characteristics of type 2 diabetes mellitus EXCEPT: Insulin levels may or may NOT be abnormal. More common than type 1 diabetes. Requires insulin therapy to control hyperglycemia. It commonly occurs in adults.
Requires insulin therapy to control hyperglycemia.
Which of the following is considered the major transport protein for vitamin A? Please select the single best answer Transthyretin Retinol-binding protein Transferrin Haptoglobin
Retinol-binding protein
A medical event occurs that results in serious injury to a patient. All systems, processes, and common causes that were involved in the adverse event should be evaluated. A method that can be implemented to effectively study the underlying causes is known as: Please select the single best answer Failure mode and effect analysis Monitoring of quality indicators Medical record audit Root cause analysis
Root cause analysis
Which of the following procedures would you employ to monitor the precision of an assay? Please select the single best answer Run assayed controls Run blinded samples Run samples by an alternative method Run samples in duplicate
Run samples in duplicate
The term, analytical specificity, refers to: Please select the single best answer The ability to measure only that substance being assayed. The ability to measure the range of concentration in a sample without modification. The ability to detect low concentrations of analytes. The ability of the measuring system to change in response to a change in concentration of analyte.
The ability to measure only that substance being assayed.
What is the threshold limit value? The maximum level of a chemical to which a worker can be exposed without causing adverse health effects. The temperature at which a chemical will ignite. The amount of water needed to dilute a chemical for laboratory use. The amount of a chemical that can legally be stored in a laboratory.
The maximum level of a chemical to which a worker can be exposed without causing adverse health effects.
According to the American Diabetes Association recommendations, which of the following statements is TRUE with regards to the following findings? Fasting glucose = 130 mg/dL 2-hour post prandial glucose = 210 mg/dL Please select the single best answer The patient may be diagnosed as having diabetes mellitus The patient is diagnosed as having impaired glucose tolerance The patient is diagnosed as having diabetes insipidus The patient is normal
The patient may be diagnosed as having diabetes mellitus
A chemical reaction that is utilized by many different analytical methods involves: Please select the single best answer Fluorometry Glucose oxidase The reduction of NAD to NADH UV spectrophotometry
The reduction of NAD to NADH
Which of the following conditions should be suspected if a healthy patient presents with an elevated potassium level while all other chemistry results are normal? Please select the single best answer The sample is turbid. The sample is hemolyzed. The sample is clotted. The sample is lipemic.
The sample is hemolyzed.
A serum specimen for potassium testing is collected in a red top tube without a gel separator barrier. If testing is delayed by a few hours, how should the specimen be handled? The correct answer is highlighted below Discard the specimen and recollect right before testing is available again. Discard the specimen and recollect in a gel separator tube. The specimen should be centrifuged as soon as it clotted and serum should be transferred to another tube. There is no special handling procedure for this specimen.
The specimen should be centrifuged as soon as it clotted and serum should be transferred to another tube.
Which of the following drugs is used to treat asthma and COPD in patients with nocturnal symptoms or problems with inhalers? Please select the single best answer Theophylline Methotrexate Tacrolimus Mycophenolic acid
Theophylline
Regarding therapeutic drug monitoring, which of the following statements is correct when collecting a specimen for a trough level? Please select the single best answer Trough level is tested on a blood sample that is collected after a dose of the drug is given (at a specified time). Trough level is the point at which the drug is highest in the patient's body. Trough level is tested on a blood sample that is collected immediately prior to when the next dose of the drug is given. Trough level is collected randomly, there is no specific time for it.
Trough level is tested on a blood sample that is collected immediately prior to when the next dose of the drug is given.
Good Manufacturing Practices applies to all of the following, EXCEPT: Please select the single best answer Blood Progenitor cells Tissue Waste
Waste
Does the Levey-Jennings chart to the right show acceptable quality control results? Please select the single best answer No, because of Westgard Rule 13s No, because of Westgard Rule 22s No, because of Westgard Rule 41s Yes
Yes
A reaction is in ____________ kinetics when the reaction rate depends only on enzyme concentration. Please select the single best answer Zero-order First-order Second-order Mixed-order
Zero-order
What measures the concentration of solute particles in a solution? Please select the single best answer Osmometer Fluorometer Nephelometer Spectrophotometer
Nephlometer
Compliance standards, policies and procedures apply to: Please select the single best answer Only employees who work in risk areas of the laboratory. All employees in the company regardless of their position, job description, or title. Only the billing department. Any employee involved in the compliance program or the legal department.
All employees in the company regardless of their position, job description, or title.
When measuring enzyme activity, if the instrument is operating 5ºC lower than the temperature prescribed for the method, how will the results be affected? Please select the single best answer Lower than actual Higher than actual Varied, showing no particular pattern No effect
Lower than actual
Which analyte measurement is used to detect early nephropathy in a diabetic patient? Please select the single best answer Lactic acid Albumin Ketones HbA1C
Albumin
The analysis of DNA products using automated molecular testing equipment has the listed advantages EXCEPT: Please select the single best answer Automated equipment for molecular testing is less expensive to purchase and maintain. Automated equipment for molecular testing produces products with greater specificity and sensitivity. Automated equipment for molecular DNA amplification products produces more consistent product quality. Automated equipment for molecular testing requires a smaller sample volume.
Automated equipment for molecular testing is less expensive to purchase and maintain.
A patient is seen in the ER for abdominal pain and jaundice (yellowing of the skin and sclera). A quick urinalysis is performed, and it is noted there is an increase in urine urobilinogen. All of the following are likely causes EXCEPT: Please select the single best answer Hepatitis Hemolytic episode Cholelithiasis Chronic liver disease
Cholelithiasis
Which of the following clinical laboratory departments performs the most tests? Please select the single best answer Urinalysis Microbiology Clinical Chemistry Hematology
Clinical Chemistry
At what frequency must the temperature of a chart recorder be compared to a thermometer? Please select the single best answer Daily Monthly Quarterly Annually
Daily
Increases in blood ammonia levels would be expected in which of the following conditions: Please select the single best answer Diabetes Obstructive jaundice End-stage cirrhosis Myocardial infarction
End-stage cirrhosis
Which porphyria has a defect in the ferrochetalase enzyme within the RBC, causing redness, edema and burning when exposed to light? Please select the single best answer Erythropoietic protoporphyria Congenital erythropoietic porphyria X-linked protoporphyria Variegate porphyria
Erythropoietic protoporphyria
Which organisms are the appropriate stock cultures for quality control testing of oxidase production? Please select the single best answer Escherichia coli / Klebsiella pneumoniae Salmonella typhimurium / Escherichia coli Escherichia coli / Pseudomonas aeruginosa Proteus mirabilis / Escherichia coli
Escherichia coli / Pseudomonas aeruginosa
The bioavailability of an oral drug refers to the: Availability for therapeutic administration Ratio of protein-bound to free drug Amount of drug transformation Fraction of the drug that is absorbed into the systemic circulation
Fraction of the drug that is absorbed into the systemic circulation L3
What section of the SDS would provide information about whether a chemical is carcinogenic? Please select the single best answer Physical and chemical data Health hazard data Reactivity data Handling and storage data
Health hazard data
The risk of laboratory-acquired infections with viruses, such as HIV-1, is a critical consideration. All of the following routes are considered modes of transmission with infected blood or other body fluids, EXCEPT? Please select the single best answer Contact of the hand (non-intact skin) Contact with eyes Contact with mouth Inhalation (airborne transmission)
Inhalation (airborne transmission)
You are working to validate a new method for detecting C-reactive protein (CRP) in serum. To assess precision, you run a medium-level control 30 times and determine the mean to be 4.0 mg/dL with a standard deviation of 0.04 mg/dL. What could be said about the precision of this run, assuming a CV less than 3% is acceptable? Please select the single best answer It is not acceptable, with a coefficient of variation of 100%. It is not acceptable, with a coefficient of variation of 10%. It is acceptable, with a coefficient of variation of 0.1%. It is acceptable, with a coefficient of variation of 1%.
It is acceptable, with a coefficient of variation of 1%.
You are collecting a blood specimen to be used for forensic (legal) alcohol testing. Which of the following must be done before you can start the specimen collection process? Please select the single best answer Label the tubes in the presence of the patient. Must inform the patient that the blood about to be collected is for alcohol testing. Seal the collection tubes in front of the patient. Collect the specimen, the patient does not need to be informed what the blood is collected for.
Must inform the patient that the blood about to be collected is for alcohol testing.
Which of the following BEST describes the relation of nephelometry to turbidimetry? Please select the single best answer Nephelometry measures the amount of light absorbed by particles in solution, and turbidimetry measures the amount of light transmitted through a solution Nephelometry directly measures the amount of light scattered by particles in solution, and turbidimetry measures the decrease in incident-light intensity Nephelometry measures the amount of light emitted by particles in solution, and turbidimetry measures the amount of light reflected by particles in solution Nephelometry measures the amount of light absorbed, and Turbidimetry measures the amount of light scattered
Nephelometry directly measures the amount of light scattered by particles in solution, and turbidimetry measures the decrease in incident-light intensity
Which of the following instruments measures changes in vapor pressure? Please select the single best answer Osmometer Coulometer Nephelometer Spectrophotometer
Osmometer
All of the following are types of quality and process improvement tools, EXCEPT: Please select the single best answer Six Sigma Lean Sentinel events Root-cause analysis
Sentinel events
All of the following statements about blood cultures are correct, EXCEPT: Please select the single best answer The volume of blood collected is important. Short draws will reduce the likelihood of successfully growing out bacteria. If two separate sets of blood cultures are requested, do not draw them both from the same site at the same time. Be sure to allow the iodine prep to dry on the patient's skin prior to performing the blood culture. Since all gloves are sterile, you may use your gloved finger without further preparation to feel the vein on a prepped arm before making the stick.
Since all gloves are sterile, you may use your gloved finger without further preparation to feel the vein on a prepped arm before making the stick.
The risk of exposure of a person to an infection of tuberculosis (TB) disease may be related to which of the following: Born in the United States High social status Socially disadvantaged Person in non-high-risk groups
Socially disadvantaged
Which of the following contributes most to serum osmolality: Please select the single best answer Magnesium Albumin Potassium Sodium
Sodium
Which analyte should be increased in the presence of gout? Please select the single best answer Uric acid Aldolase Amylase Troponin
Uric acid
Which of the following microscopic techniques is best suited for direct examination of the infectious agent of syphilis? Please select the single best answer Light microscopy Phase-contrast microscopy Dark-field microscopy Electron microscopy
Dark-field microscopy
When is a trough blood sample for therapeutic drug monitoring usually obtained? Please select the single best answer Just after the dose is administered Just before the next scheduled dose At the peak time calculated after a dose After one half-life of the drug
Just before the next scheduled dose
Precision is a measure of: Please select the single best answer Method accuracy Random variability Method reliability Biological variability
Method reliability
Which of the following conditions would be suggested by a jaundiced patient experiencing a marked rise in alkaline phosphatase (ALP), conjugated bilirubin, and a slight rise in alanine aminotransferase (ALT)? Please select the single best answer Cardiovascular disease Hepatitis Post-hepatic cholestasis Renal failure
Post-hepatic cholestasis
Which type of electrophoresis is used to separate larger DNA fragments (>50 kb)? Please select the single best answer Polyacrylamide gel electrophoresis Capillary electrophoresis Isoelectric focusing Pulsed field electrophoresis
Pulsed field electrophoresis
An MCV is reported by the instrument as 82 fL. The MCV is flagged with a delta check alert as the previous MCV reported on this patient 12 hours earlier was 97 fL. What is a possible cause for this discrepancy? Please select the single best answer Transfusion The specimens are not from the same patient Acute hemorrhage The second specimen was hemolyzed
The specimens are not from the same patient
When operating a centrifuge, what happens if the centrifugation time is reduced and the speed increased? Please select the single best answer The potential breakage of collection tube is highly increased. There is increased chance of exposure to biohazardous agents. There will be incomplete separation of red blood cells and serum in the tube. Mechanical damage to the centrifuge may occur.
There will be incomplete separation of red blood cells and serum in the tube.
A physician discusses weight with an overweight 60-year-old female at her yearly physical appointment. The female exercises regularly and eats healthy most of the time. The physician suggests she decrease carbohydrate intake and decrease portion size at meals. Review patient vital signs and laboratory assay results to decide if a diagnosis of metabolic syndrome is appropriate using the NCEP: ATP III Diagnostic Criteria shown on the right. Height: 5' 7' Weight: 192 lbs BMI: 30.1 Waist Circumference: 37 inches Blood Pressure: 108/70 Fasting Blood Glucose: 92 mg/dL Total Cholesterol: 172 mg/dL LDL-C: 112 mg/dL HDL-C: 46 mg/dL Triglycerides: 70 mg/dL hs-CRP: <1.0 mg/L Which of these statements regarding this patient is true? Please select the single best answer This patient meets the criteria for diagnosis of metabolic syndrome. This patient does not meet the criteria for diagnosis of metabolic syndrome. There is not enough information provided in order to assess such a diagnosis. The patient does not meet the age requirements for assessing the diagnosis of metabolic syndrome.
This patient does not meet the criteria for diagnosis of metabolic syndrome.
Which of the following methods may be used by a laboratory to document and analyze all of the steps that bring a laboratory test result to the customer (eg, physician, nurse, and/or patient)? Please select the single best answer Root cause analysis Value stream mapping 5S Kaizen workshop
Value stream mapping
A patient with renal failure is seen for blood work. What would you expect the serum calcium and phosphorus levels to be in this patient? Please select the single best answer Increased calcium and phosphorus levels Decreased calcium and phosphorus levels Increased calcium but decreased phosphorus levels Decreased calcium but increased phosphorus levels
Decreased calcium but increased phosphorus levels
At a medical examination, a 50-year-old Caucasian male expressed concern regarding diabetes. There is a history of type 2 diabetes, hypertension, and cardiovascular disease in his family. He has gained a few pounds each year, and his physician notes abdominal obesity. His physician orders laboratory tests to evaluate his risk of cardiovascular disease. Vital Signs and Pertinent Laboratory Results: Blood Pressure: 128/82 mm Hg Weight: 230 lbs Height: 5' 11'' Calculated BMI: 32.1 Waist Circumference: 45 inches Fasting Blood Glucose: 120 mg/dL Triglycerides: 170 mg/dL HDL-C: 42 mg/dL Which one of the following statements regarding this patient is true if the physician uses the American Heart Association (AHA) and National Heart, Lung, Blood Institute (NHLBI) guidelines for metabolic syndrome evaluation? Diagnosis of metabolic syndrome; waist circumference, HDL-C, and fasting blood glucose meet the criteria Diagnosis of metabolic syndrome; waist circumference, triglyceride level, and fasting blood glucose meet the criteria It does not meet the criteria for diagnosis of the metabolic syndrome because the HDL-C is not <40 mg/dL Cannot make a conclusion regarding metabolic syndrome because the LDL-C was not assayed
Diagnosis of metabolic syndrome; waist circumference, triglyceride level, and fasting blood glucose meet the criteria
The greatest source of error in point of care testing is: Please select the single best answer Selection of POCT analyzer or methodology Preanalytical error Analytical Error Postanalytical Error
Preanalytical error
What accelerates the rate of lipase activity in the body? Please select the single best answer Presence of water Presence of bile salt Absence of bile salt Presence of alcohol
Presence of bile salt
Which of the following is the prodrug of phenobarbital? Please select the single best answer Fosphenytoin Ethosuximide Primidone Gabapentin
Primidone