CHAPTER 1004 NGNA

A term used to describe a blood sample in which the red blood cells have ruptured is:

hematoma.

hemolyzed.

 

preservatives.

 

teratogen.

Hemolyzed

Laboratory department that studies bacteria, fungi, yeasts, parasites, and viruses is:

microbiology.

 

histology.

 

chemistry.

 

hematology.

microbiology

Categories of tests performed in the clinical laboratory are assigned by the FDA on the basis of the:

ease of performance.

 

expense to the patient.

 

potential risk to public health.

 

instrumentation and supplies needed.

potential risk to public health.

Which of the following is not a CLIA-waived test?

Dipstick urinalysis

Gram’s staining 

Fecal occult blood

Spun microhematocrit

Gram’s staining 

A culture and sensitivity (C&S) test is most likely to be performed in which division of the clinical laboratory?

Microbiology

 

Hematology

 

Chemistry

 

Urinalysis

microbiology

Balancing a centrifuge requires that all tubes in the load:

 

All are correct

 

have about the same volume of liquid in each tube.

 

are of equal size and shape.

 

have a partner directly across in the rotor holder.

All are correct

Before a laboratory test can be used for patient samples, quality control must be run to ensure that the test is considered:

dependable.

precise.

accurate.

reliable.

reliable

What term describes the physical, chemical, and microscopic examination of urine?

Erythrocyte sedimentation rate

Urinalysis

 

Culture and sensitivity

 

None are correct

Urinalysis

Chain of custody procedures are extremely important when specimens are collected and handled for drug and alcohol testing. T OR F

TRUE

What structure in the nephron filters the blood to create filtrate?

Glomerulus

 

Distal convoluted tubule

 

Bowman’s capsule

 

Loop of Henle

Glomerulus

Abnormal urine color may be related to which of the following?

Disease

Diet

All are correct

Medication

ALL ARE CORRECT

Polyuria is common in which clinical situation?

Diabetes mellitus

 

Urinary tract infections

 

Dehydration

 

Renal failure

 

Diabetes mellitus

Hematuria is the presence of intact red blood cells in urine. T or F

TRUE

What is a normal adult WBC count?

 

10,000 cells/mm³

Platelets:

assist in the delivery of oxygen to tissues.

None are correct

are elevated in thrombocytopenia.

are fragments of a larger cell called a megakaryocyte.

 

are fragments of a larger cell called a megakaryocyte.

What department of the laboratory performs H&H tests?

Immunology

Cytology

Hematology

Chemistry

Hematology

When is administration of RhoGAM immune globulin absolutely necessary?

If an Rh-negative mother gives birth to an Rh-positive baby.

 

If both mother and baby are Rh negative.

 

If an Rh-positive mother gives birth to an Rh-negative baby.

 

If an Rh-negative man fathers an Rh-negative baby.

If an Rh-negative mother gives birth to an Rh-positive baby.

Troponin is a component of a(n) ________ panel.

liver

renal

cardiac

electrolyte

CARDIAC

Hemoglobin A1c is measured to monitor:

diabetes.

 

hemolytic disease of the newborn.

 

anemia.

 

transfusion reactions.

DIABETES

Which of the following leukocytes are associated with allergies?

All are correct

Polymorphonuclear neutrophils

Monocytes

Eosinophils

Eosinophils

This instrument is used to separate blood cells from plasma.

Microscope

Incubator

All are correct

Centrifuge

Centrifuge

Lavender-topped tubes are used for routine CBC tests. T or F

TRUE

AST and ALT testing is done to monitor potential liver damage in patients receiving statin drugs. T or F

TRUE

Which are not considered microorganisms?

Rickettsiae

Fungi

Bacteria

All are correct

All are correct

Which of the following will need a blood sample for diagnosis?

Salmonella 

Tetanus

All are correct

Strep throat

 

Tetanus

Negative rapid strep test results must be confirmed with a throat culture, because the rapid strep test is highly specific but not highly sensitive. T or F

TRUE

The Epstein-Barr virus causes mononucleosis. T or F

TRUE

Which of the following Vacutainer tubes is routinely used for hematology testing?

Red topped

Light blue topped

Green topped

Lavender topped

 

Lavender topped

Which type of tube should be used to collect blood specimens during a glucose tolerance test?

Yellow topped

Gray topped

Lavender topped

Red topped

 

Gray topped

The needle size most commonly used for adult venipuncture is:

23 gauge.

18 gauge. 

20 gauge.

16 gauge.

 

20 gauge.

The needle size most commonly used by a blood bank for donations units is:

20 gauge.

18 gauge.

23 gauge.

16 gauge.

16 gauge.

A tourniquet should remain tied on a patient’s arm no longer than:

5 minutes.

1 minute.

2 minutes.

3 minutes.

1 MINUTE

The laboratory requisition indicates that you are to collect a venous blood specimen for hematology testing, serum chemistry testing, and coagulation studies. What is the proper order of collection for these tubes?

Light blue, red, lavender

Red, light blue, lavender

Yellow, red, light blue

Two lavender, one red

 

Light blue, red, lavender

In a routine venipuncture, the angle at which the needle enters the arm should be _____ degrees.

15

Why should a tourniquet not be tied too tightly?

All are correct.

Veins won’t bulge or plump up.

It restricts venous blood return.

It impedes arterial blood flow.

 

All are correct.

Which is the proper technique for performing a venipuncture?

The needle bevel is face down, and the needle is inserted at a 15- to 30-degree angle. 

The needle bevel can be oriented in either direction, but the needle must be inserted at a low angle.

The needle bevel is face up, and the needle is inserted at a 20- to 30-degree angle. 

The needle bevel is face up, and the needle is inserted at a 15-degree angle.

 

The needle bevel is face up, and the needle is inserted at a 15-degree angle.

In adults and children, which finger is usually used for a routine capillary puncture site?

Fifth finger

Index finger

Ring finger

Thumb

 

Ring finger

The smaller the gauge number, the larger the lumen of the venipuncture needle. T or F

TRUE

Capillary blood is a mixture of arterial blood and venous blood. T or F

TRUE

If a patient has had a mastectomy on the left side, you should never draw blood on that side.

T or F

TRUE

Which of the following is not a responsibility of the medical assistant in the clinical laboratory? 

Obtaining and labeling specimens

Interpreting abnormal results and providing patients with diagnoses

Providing proper patient preparation

Developing a knowledge of analyte normal range of results

 

Interpreting abnormal results and providing patients with diagnoses

The act passed by Congress to establish quality standards for all laboratory testing is referred to as:

CLIA.

MSDS.

CDC.

FDA.

CLIA

Laboratory tests performed in a physician’s office are most likely to be categorized as CLIA-:

moderate complexity.

waived.

high complexity 

waived and moderate complexity.

 

waived and moderate complexity.

Which of the following is not a CLIA-waived test?

Fecal occult blood

Gram’s staining

Spun microhematocrit 

Dipstick urinalysis

Gram’s staining

In ambulatory medical laboratories, medical assistants are trained to do all the following except which one.

educate patients on preparation for testing

diagnosis and assign treatment

properly label specimens

properly collect specimens

 

diagnosis and assign treatment

Urinalysis

The physical and chemical examination of a specimen

Chemistry

A fasting glucose

Microbiology

identifying a bacteria in a specimen

Blood Bank

typing and screening of a blood sample

Hematology

white blood cell count

The physician has ordered a urine human chorionic gonadotropin (hcg) antibodies test. You should assume he is checking for what?

possible pregnancy

none of these are correct

possible hepatitis

possoble sepsis infection

 

possoble sepsis infection

Which of the following requires a whole blood sample and not just a capillary blood sample. 

H-pylorie antibodies

Hemoglobin A1C

Mononucleosis Screening

Cholesterol testing

 

H-pylorie antibodies

 A glucmeter is used for what type of testing?

 

blood glucose test

Medical assistants perform NON-CLIA Waived testing in ambulatory laboratories because it is the least complex of testing. 

TRUE OR FALSE 

false

random urine

can be collected at any time of the day, used for screening purposes. patient uses a non sterile container

First morning urine

uses the first urine specimen of the morning in a clean container. used for specific testing such as pregnancy

clean catch mid-stream testing

this specimen is used for cultures and noncantaminated specimens. Pt will clean genitalia area, urinate then catch sample mid-stream

24 hour sample

used for analyzing kidney function. urine is collected over a 24 hour period

catheterized specimen

only way to get a sterile sample; a catheter is inserted through the urethra into the bladder and a urine specimen is drained into a sterile container for testing

This test is for screening of disease, cancer, or gastrointestinal bleeding. The patient must avoid red meats, red dyes, aspirin, vit C and iron before this test to avoid false positives. During the testing, if the sample turns blue after the additive is added, the results are positive, indicating a precence of blood. What test is this?

 fecal occult blood test

Hemoglobin test

blood glucose test

Hematocrit test

 fecal occult blood test

The precence of the Epstein-Barr Virus indicates what? 

Helicobacter Pylori

Monocucleosis

Hemoglobin A1C

Cancer

 

Monocucleosis

A medical assistant may need to obtain a urine specimen for drug or alcohol analysis. These are considered legal specimens and may be used in the court of law and must be handled carefully. The procedure for accuratley obtaining the specimen, labeling the specimen, packaging the specimen, explaining to the patient and transporting the specimen are a part of what is called the _________. 

CLIA-Waived testing

Analytic Phase

Biohazard Precautions

Chain of custody

Chain of custody

You have a critical lab call from the lab, label the steps you will follow.

1- Notify the MD 

2- Verify the callers name and facility

3- Repeat back the patients name, dob, and test results for clarification  

4- Write everything down for the provider

 1,2,3,4

4,3,2,1

2, 3, 4, 1

 

2, 3, 4, 1

What is the MOST commonly tested specimen in an ambulatory care setting?

blood

stool

sputum

urine

urine

This type of testing must be done and documented on every new box or container of specimen testing in ambulatory care laboratories for quality assurance of testing and is mandated by CLIA.

 Quality Controls

Specialty Controls

Quality Care

Proficiency Testing

 

Quality Controls

A medical assistant that works in a Pulmonologists office may perform which testing? 

Pulmonary function testing

Peak Flow Meter test

Spirometry Test

all answers are correct

 

all answers are correct

A urine sample that has to sit longer than 1 hour before transporation can be _______?

 must be thrown out

kept out on counter

kept in a refrigerator

kept in a freezer

 

kept in a refrigerator