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