Final Exam Review
When performing duplicate testing in a manual analysis, what is the acceptable % within which the 2 results should match? 20% 5% 10% 2%
10%
When performing a blood cell differential, how many WBC's are typically counted in order to establish a %? 500 200 100 50
100
What is the proper ratio between anticoagulant and plasma in an acceptable patient specimen collected in NaCitrate for coagulation testing. 2:1 1:2 5:1 9:1 1:9
1:9
The field of medical technology began 50 years ago. True False
False
Individuals with Hemophilia B have a deficiency of which factor? II V VIII IX
IX
The antibody class that is in highest concentration in serum is ____________________.
IgG
monomeric immunoglobulin
IgG
pentameric immunoglobulin
IgM
Which is true of red cells in iron deficiency anemia? They are normocytic. They are macrocytic. They are hypochromic. They are normocytic and hypochromic. They are hyperchromic.
They are hypochromic.
In RhD typing: the test should be repeated if the control test is negative the control serum should always be positive agglutination is a positive result All are correct.
agglutination is a positive result
An automated instrument for testing platelet aggregration is the ____________________.
aggregometer
comprises approximately half of the serum total protein
albumin
pancreatic enzyme
amylase
Which analyte is the only additional test included in a hepatic profile but not in a CMP? Albumin ALT AST Direct Bilirubin
direct bilirubin
The meaning of the suffix -opathy is: state or condition disease cut into create an opening
disease
A patient with an artificial heart valve could have damaged red blood cells called: codocytes sickle cells stomatocytes nucleated RBCs keratocytes
keratocytes
A patient with an artificial heart valve could have damaged red blood cells called: nucleated RBCs keratocytes codocytes sickle cells stomatocytes
keratocytes
secondary lymphoid tissue
lymph nodes and spleen
universal blood donor
o negative
what can cause a false positive result in an hcg test
ovarian tumor
testing polymers of amplified dna
pcr
Which of the following proteins is responsible for initiating fibrinolysis? prothrombin plasmin plasminogen thrombin Factor XIII
plasmin
Staph and Strep are Gram __________ organisms positive or negative
positive
present when fbs is >180 mg/dL
positive glucose
major intracellular cation
potassium
insoluble antigen-antibody complex
precipitation
The extent to which duplicate results, or a set of repeated results of the same analysis, may be reproduced is referred to as: sensitivity accuracy precision validation
precision
The Remel D-dimer test can be used for a qualitative result or a semi-_________________ result.
quantitative
If a urine cannot be tested within 1 hour of the collection time, it should be: refrigerated at 4°F-6°F for up to 4 hours frozen to preserve it refrigerated overnight discarded
refrigerated at 4°F-6°F for up to 4 hours
The major functions of the kidney include: regulation of acid-base balance regulation of body temperature regulation of blood volume and composition production of the majority of hormones in the body
regulation of acid-base balance
The concave region of the kidney where lymphatic vessels, blood vessels, and nerves enter or exit is the: ____________
renal hilus
slicing out a small portion of dna for detection of polymorphisms
rflp
autoantibodies, usually of IgM type
rheumatoid factors
Presence of agglutination in the qualitative test for RF should be followed by a(n) ____________________. repeat the qualitative test semiquantitative test with serial dilutions quantitative test
semiquantitative test with serial dilutions
major extracellular cation
sodium
cells present from natural 'sloughing' of lining
squamous epithelial
first rapid slide tests for hcg
agglutination inhibition
A tech needs to count a pleural fluid for the WBC using a hemocytometer. The fluid is prepared using a 1:100 dilution. The results counted are as follows, counting the 4 large squares on each side: Side 1: 42, 45, 51, 31 Side 2: 46, 39, 50, 48 Which answer is correct when reporting the WBC? 4.36 x 104 78.2 1.95 x 105 1.94 x 104
4.36 x 104
positive rf test result
> titer of 1:20
a liver-specific enzyme
ALT
PT/INR detects abnormalities in which of the following? Extrinsic Pathway Common Pathway Vitamin K deficiency Warfarin Treatment All of the above
All of the above
levels in the blood referred to as uremia
BUN
All of these statements are true concerning quality assessment in preparation of reagents EXCEPT: The pipet should be appropriate for the task. Beakers and Erlenmeyer flasks are used to measure ingredients. Reagents should be inspected for signs of deterioration. Proper storage conditions for each reagent must be observed.
Beakers and Erlenmeyer flasks are used to measure ingredients.
Which of the following agencies is responsible for accreditation of the clinical laboratory? POL EMR CAP CMS
CAP
uses enzyme labeled antibody
EIA
Fever of unknown origin is abbreviated by using the letters: FO FBS FUO FU
FUO
Idiopathic thrombocytopenic purpura (ITP) is an inherited platelet disorder. True False
False
Infectious mononucleosis is characterized by an increase in monocytes. False True
False
All of the following statements are true of the APTT EXCEPT: It is used to monitor all oral anticoagulant therapy. It is named APTT because the test reagent contains activators. Kaolin, silica, or other activators activate contact factors in the intrinsic pathway. Factors VII, XIII and PF3 are not assayed.
It is used to monitor all oral anticoagulant therapy.
All of the following are methods of naming Rh antigens EXCEPT: Rosenfield Weiner Fisher-Race Landsteiner
Landsteiner
The defining difference between the MLT and MLS is Level of Certification and Licensure Level of Education Pay Scale State of Employment
Level of Certification and Licensure
What 2 types of plated media are used for urine culture? MAC and EMB MAC and blood mycosel and EMB chocolate and blood
MAC and blood
What is the name of a staphylococcus that cannot be destroyed by routine penicillin group antibiotics?
MRSA
Platelets are generated from which "mother cell?" Plasma cell Megakaryocyte Myeloma cell Monoblast
Megakaryocyte
Which of the following agencies is responsible for accreditation of Clinical Laboratory Training Programs such as MLT ans MLS? CLSI NAACLS COLA FDA
NAACLS
The agency responsible for dictates of safety in the clinical laboratory is: OSHA COLA POCT CMS
OSHA
All of the following are ESR methods EXCEPT: Westergren Wintrobe Zeta Quick's ESR Sediplast
Quick's ESR
cells present in cases of tubular necrosis
RTE
The traditional method of applying sample from a swab onto the media plates in order that isolated colonies can be seen is: Streak for isolation X and V technique Streak for optimal growth Crosshatch streak for colony count
Streak for isolation
Which of the following is true of reference and recommended values? The NCEP desirable level for total cholesterol is < 200 mg/dL. Triglyceride levels greater than 200 mg/dL are classified as very high. LDL optimal level is > 190 mg/dL. Cholesterol values > 240 mg/dL are borderline high. All of the above (a-d) are true.
The NCEP desirable level for total cholesterol is < 200 mg/dL.
If a 2 M solution is diluted 1:10, which of the following is true? The concentration of the dilution is 0.2 M. The dilution factor is 20. The original solution was 20 M. The dilution factor is 0.2.
The concentration of the dilution is 0.2 M.
All of the following are true concerning laboratory balances EXCEPT: They should be checked with known weights at intervals. They should be installed where they do not get bumped and jarred. The weighing pan should be cleaned once a day. They should not be installed in front of a window that can be opened.
The weighing pan should be cleaned once a day.
Which is true of red cells in iron deficiency anemia? They are macrocytic. They are hyperchromic. They are normocytic and hypochromic. They are hypochromic. They are normocytic.
They are hypochromic.
principle of rf test
agglutination
Certain bacterial and fungal infections can cause DIC. True False
True
Some POCT coagulation instruments can be used at home by the patient. True False
True
The term clinical laboratory science largely replaced medical technology for several years. True False
True
Which of the following statements is true of the hemacytometer? When viewed from the top, it has two polished raised platforms. The depressions surrounding the platforms are called ditches. The depressions surrounding the platforms form the letter I. None of the above (a-c) are true. All of the above (a-c) are true.
When viewed from the top, it has two polished raised platforms.
universal blood recipient
ab positive
The abnormal condition in which blood pH falls below 7.35 is ____________________.
acidosis
produce immunoglobulins
b cells
primary lymphoid tissue
bone marrow
causative agent of lyme dz
borellia burgdorfferi
A 90% concentration of alcohol is in stock in the laboratory. The percent solution required is 70%. How is 200 mL of 70% made? Give the formula and the final answer.
c1xv1=c2xv2 90v1=70x200 155 g in 200 ml of water
major extracellular anion
chloride
renal marker tested for Glomerular Filtration Rate
creatinine
hexagonal shaped crystal present in metabolic dz
cystine crystals
extrauterine pregnancy also known as
ectopic
causative agent of IM (mono)
epstein barr virus (spelling?)
When the body burns sugar for energy, a group of molecules called ketones are produced. true or false
false
The National Institute for Occupational Safety and Health (NIOSH) is involved in overseeing clinical laboratory operations and enforcing safety regulations. True False
false, it's osha
If blood flow is slow, the tip of the fingertip can be squeezed to increase flow. True False
false. do not squeeze the tip, squeeze further down
perferred specimen for most hcg tests
first morning urine
elevated levels in blood indicate hyperglycemia
glucose
What is the name of the stain used in the microbiology lab to differentiate organisms based on morphology and biochemistry of organism? Gram Wright AFB Giemsa
gram
levels rise during first trimester
hcg
consits of Tamm Horsefall protein
hyaline cast
Decreased serum potassium due to diarrhea vomiting or use of diuretics is known as ____________________.
hypokalemia
confirms presence of positive billirubin on urinary test strip
ictotest
The suffix "itis" refers to a condition of: hemorhage hypoventilation bradycardia inflammation
inflammation
Which is correct concerning donor blood? It is labeled D positive if the patient has weak D. it is labeled Rh positive if the weak D test is negative It is not routinely tested for D antigen.
it is labeled Rh positive if the weak D test is negative
As of June 2010, donated blood is tested for evidence of several infectious diseases. Which of the following are included in the testing? hepatitis A, hepatitis B, and hepatitis C HIV, hepatitis B, and chlamydia HIV, HTLV, and hepatitis A strep, hepatitis A, and HIV syphilis, West Nile virus, and HIV
syphilis, West Nile virus, and HIV
originate from thymus; includes nk cells
t cells
relating to a substance capable of causing birth defects
teratogenic
When selecting a diluent for the purpose of counting wbc's or platelets, what is of key importance? that all cells are lysed that all cells remain intact that rbc's are lysed that wbc's are lysed
that rbc's are lysed
If a urine specimen is to be cultured for bacteria: the container need not be sterile the urine can be left on the lab bench 2-4 hours before culture the culture must be set up before the routine urinalysis is done the specimen must be the first morning specimen none of the above
the culture must be set up before the routine urinalysis is done
parasite transmitted from std
trichomonas vaginalis
coffin shaped crystal present in alkaline urine
triple phosphate crystals
relating to embryonic nutritive tissue
trophoblastic
most specific and sensitive cardiac marker
troponin
The coarse adjustment can be used with the 10X and 40X objectives but not with the 100X objective. True False
true
The vitamin-K-dependent coagulation factors are II, VII, IX, and X. True False
true
______________is the soluble in highest concentration in the urine of healthy adult
urea
rhombic shaped crystal present in acidic urine
uric acid crystals
present in cases of anorexia
urinary ketones
On which of the following cultures is a colony count performed? throat urine eye wound
urine
Which type of culture is most likely to grow anaerobes? eye wounds throat urines
wounds