Deck 14: Laboratory Orders

Question 1

The health unit coordinator (HUC)would order a peak-and-trough around 3rd dose of tobramycin to be collected:

A)timed.
B)routinely.
C)stat.
D)ASAP.

Answer 1

timed.

Question 2

The hospital employee most likely to collect stool for ova and parasites (O&P)x 3 is the:

A)doctor.
B)respiratory therapist.
C)laboratory technician.
D)a member of the nursing staff.

Answer 2

a member of the nursing staff.

Question 3

An example of a point-of-care (POC)testing order is:

A)paracentesis.
B)guaiac all stools.
C)cardiac enzymes.
D)O&P.

Answer 3

guaiac all stools.

Question 4

A nursing staff member is most likely to collect which specimen?

A)Cervical smear
B)Pleural fluid
C)Spinal fluid
D)Catheterized urine

Question 5

Occult blood in the stool is detected by:

A)supernatural methods.
B)venipuncture.
C)the naked eye.
D)the use of a reagent such as guaiac.

Question 6

A needle puncture into the pleural space in the chest cavity to remove pleural fluid is known as:

A)paracentesis.
B)thoracentesis.
C)amniocentesis.
D)pleurocentesis.

Question 7

The study of cells is called:

A)biology.
B)serology.
C)cytology.
D)scientology.

Question 8

Antigen is abbreviated as:

A)A/G ratio.
B)Ag.
C)Ang.
D)Ab.

Question 9

Antidiuretic hormone (ADH )and adrenocorticotropic hormone (ACTH)tests are performed in which division of the laboratory?

A)Microbiology
B)Serology
C)Chemistry
D)Hematology

Question 10

A group of chemistry tests,including sodium,potassium,chloride,and carbon dioxide (CO₂),is better known as:

A)a differential.
B)erythrocytes.
C)electrolytes.
D)a reference range.

Question 11

The study of body changes caused by disease is called:

A)cytology.
B)serology.
C)changeology.
D)pathology.

Question 12

A differential performed in the clinical laboratory relates to:

A)the growth of microorganisms.
B)cerebrospinal fluid (CSF)from the spinal canal.
C)identification of the types of white cells found in the blood.
D)a car part taken out by the microbiologist.

Question 13

Which of the following specimens cannot be sent through the pneumatic tube system?

A)Blood
B)Urine
C)CSF
D)Wound drainage

Question 14

The hospital department most likely to perform testing for both diagnostic purposes and evaluation of a prescribed treatment is:

A)administration.
B)central services.
C)risk management.
D)laboratory.

Question 15

A urinalysis was ordered with the request for a special cleansing technique.This method of obtaining the specimen is called:

A)random specimen.
B)clean catch.
C)paracentesis.
D)culture and sensitivity.

Question 16

A physician is the individual who is most likely to collect which of the following specimens?

A)Bone marrow
B)Sputum
C)Wound drainage
D)Gastric washings

Question 17

Which of the following words,when included in a laboratory order,means the test likely will be performed within a 4-hour period of your entering it into the computer?

A)Routine
B)Stat
C)ASAP
D)Daily

Question 18

A bleeding time (BT)would be performed in which division of the laboratory?

A)Chemistry
B)Hematology
C)Microbiology
D)Serology

Question 19

The fluid portion of the blood in which cells are suspended contains a clotting factor called:

A)electrolytes.
B)guaiac.
C)serum.
D)fibrinogen.

Question 20

The patient has complained of blood in the stool.The doctor is likely to order which of the following tests?

A)Pap smear
B)Amniocentesis
C)Paracentesis
D)Hemoccult slide test

Question 21

The oxygen-carrying pigment of blood that gives it its red color is:

A)hemoglobin.
B)hematocrit.
C)leukocytes.
D)neutrophils.

Question 22

The clotting ability of blood is measured by the _____ blood test.

A)prothrombin time (PT)
B)Gastroccult
C)guaiac
D)Hemoccult

Question 23

A red blood cell (RBC)count is a measurement of:

A)erythrocytes.
B)random blood cells.
C)leukocytes.
D)monocytes.

Question 24

A serum study performed to detect the presence of hepatitis B in the blood is:

A)HBSAg.
B)HbA1C.
C)venereal disease research laboratory (VDRL).
D)Hep B Sag.

Question 25

A consent would be required for which of the following doctor's orders?

A)Tobramycin peak-and-trough around the 3rd dose
B)H&H q2h ´ 3
C)Coombs' test and call me with results
D)T&X 2 units PC and transfuse today

Question 26

Which of the following tests is performed to diagnose acute myocardial infarction (AMI)from a few hours to as long as 120 hours after onset?

A)Troponin
B)phosphoricum acidum (acid phos)
C)prostate-specific antigen (PSA)
D)glycosylated hemoglobin (HbA1C)

Question 27

DAT refers to the:

A)date the test was ordered.
B)date the test is to be performed.
C)direct antiglobulin test-a synonym for Coombs' test.
D)direct analysis of testing.

Question 28

The count of which immature RBCs will determine bone marrow activity and is often used in the diagnosis of anemia?

A)Retics
B)Lupus erythematosus (LE)cell prep
C)Red blood cell distribution width (RDW)
D)Erythrocyte sedimentation rate (ESR)

Question 29

The blood test for the "good" cholesterol is:

A)LDH.
B)GTT.
C)high density lipoprotein (HDL).
D)PSA.

Question 30

When a peak-and-trough is ordered,the HUC would have to coordinate specimen collection times with the:

A)patient's doctor and the case manager.
B)patient's nurse and the laboratory.
C)patient's family and the patient.
D)patient and the patient's nurse.

Question 31

The patient is to be NPO for a test.This means the:

A)HUC will have to request a cab voucher for testing at a remote facility.
B)patient must be given a nonprotein liquid orally just prior to the test.
C)patient is to have nothing by mouth-food or fluid-for a period of time.
D)patient is to be fasting from food but may have water or clear juice only.

Question 32

Results of an activated partial thromboplastin time (aPTT)test will assist the physician in monitoring the dosage of:

A)Coumadin.
B)Hepalean (heparin).
C)Cipro,Ciloxan (ciprofloxacin).
D)Diflucan (fluconazole).

Question 33

A specific test used to identify a state of pregnancy is:

A)lytes.
B)blood urea nitrogen (BUN).
C)ADH.
D)human chorionic gonadotropin (hCG).

Question 34

A general name for a test performed to detect the presence of fungi is:

A)mycology culture.
B)thoracentesis.
C)immunology.
D)antinuclear antibody test.

Question 35

An AFB culture is defined as:

A)Air Force lab testing.
B)foreign body cultures.
C)acid-fast bacilli.
D)acid-fast bronchoscopy.

Question 36

The laboratory division most likely to perform a blood test related to clotting and bleeding disorders is:

A)chemistry.
B)serology.
C)hematology.
D)virology.

Question 37

The test that is used to diagnose gout is:

A)ACTH.
B)Schilling's test.
C)uric acid.
D)triglycerides.

Question 38

Results of a PT test will assist the doctor in prescribing:

A)folate.
B)thromboplastin.
C)Ansaid (flurbiprofen).
D)Coumadin (warfarin).

Question 39

Which of the following is TRUE of the fern test?

A)It can assess the viability of plants.
B)Only microscopic visualization is used to detect the presence of amniotic fluid.
C)A reagent and a microscope are used to detect the presence of amniotic fluid.
D)A reagent is used to detect hidden blood in gastric and stool specimens.

Question 40

A normal value for sodium is:

A)45 to 50 vol/dL.
B)14.5 to 16 g/dL.
C)6000 to 9000/mm3.
D)132 to 142 mEq/L.

Question 41

The symbol that represents potassium is:

A)K.
B)Ca.
C)Fe.
D)P.

Question 42

Which of the following orders would be associated with lumbar puncture?

A)CSF for serology
B)2 h PP BS
C)RA factor
D)T₃

Question 43

What time would an FBS be ordered to be drawn?

A)One hour after lunch
B)One hour prior to eating
C)After the patient has not eaten for 8 to 10 hours
D)Two hours after eating

Question 44

Another term for packed cell volume (PCV)is:

A)hemoglobin.
B)hematocrit.
C)2 units of PC.
D)plasma.

Question 45

Which urine specimen is collected under sterile conditions?

A)Voided
B)Clean catch/midstream
C)Catheterized
D)Urinary incontinence

Question 46

PP refers to:

A)urinalysis (i.e. ,medical abbreviation for urination).
B)post puncture (i.e. ,after lumbar puncture).
C)postprandial (i.e. ,after eating a meal).
D)plasma pac (i.e. ,blood banking method).

Question 47

To avoid any errors when receiving laboratory values from laboratory personnel via telephone,the HUC should:

A)ask a nurse to listen in as the values are given.
B)advise the person to call the patient's doctor directly.
C)tape record the person giving the values.
D)record the values and then read them back to the person.

Question 48

What specimen is most commonly used for laboratory studies?

A)Urine
B)Blood
C)Stool
D)Wound drainage

Question 49

Which of the following indicates that a specimen may be collected at any time?

A)Stat
B)Timed
C)Fasting
D)Random

Question 50

A consent form must be completed and the patient's permission by written signature must be obtained for which of the following diagnostic studies?

A)Thoracentesis
B)Pap smear
C)Antinuclear antibody
D)Carcinoembryonic antigen

Question 51

Which of the following values is a critical value?

A)Potassium (K): 3.5 mEq/L
B)Hgb: 14.5 g/dL
C)Hematocrit (Hct): 45 vol/dL
D)FBS: 320 mg/dL

Question 52

The physician suspects that the patient has an inflammatory disease of the urinary system and prostate gland.The urine _____ test,specific for this condition,may be ordered to rule out this suspicion.

A)creatinine
B)protein
C)glucose
D)osmolality