4

Question 1

What part of the body synthesizes and secretes B-type natriuretic peptide (BNP)?

Answer 1

heart

Question 2

What is the nucleic acid content of togavirus?

Answer 2

RNA

Question 3

What is the nucleic acid content of coronavirus?

Answer 3

RNA

Question 4

What is the nucleic acid content of herpesvirus?

Answer 4

DNA

Question 5

What is the nucleic acid content of adenovirus?

Answer 5

DNA

Question 6

White blood cell casts most likely indicate disease of what organ?

Answer 6

kidneys

Question 7

What two procedures can confirm the presence of Bence-Jones proteins?

Answer 7

immunofixation or immunoelectrophoresis

Question 8

What distinguishes vancomycin-resistant E. faecium and E. faecalis from other Enterococcus species?

Answer 8

non-motility

Question 9

What is the expected serum osmolality value in cases of dehydration or diabetes insipidus?

Answer 9

increased

Question 10

What do VLDL transport?

Answer 10

endogenous triglycerides

Question 11

What media selects for Campylobacter jejuni?

Answer 11

Skirrow’s blood agar

Question 12

What is the name of the “Right to Know” law, an OSHA regulation dealing with specific information related to the contents of chemicals used in the workplace?

Answer 12

Hazard Communication 1910.1200

Question 13

What three methods are capable of detecting Clostridium difficile in less than 48 hours?

Answer 13

glutamate dehydrogenase (GDH), antigenic detection of the A and B toxins, and PCR

Question 14

What organism is most likely responsible for septic reactions associated with red blood cell transfusions?

Answer 14

Yersinia entercolitica

Question 15

What is the composition of granules associated with basophilic stippling?

Answer 15

aggregation of ribosomes

Question 16

Which virus is most often reported as the cause of infection leading to aplastic crisis in sickle cell patients?

Answer 16

parvovirus B19

Question 17

What four things are Enterococci intrinsically resistant to?

Answer 17

aminoglycoside, clindamycin, trimethoprim-sulfamethoxasole, and cephalosporins

Question 18

T or F: The first time a cell containing Hgb SS is deoxygenated, it forms an irreversibly sickled cell.

Answer 18

false

Question 19

An electrophoretic pattern showing an increase in Hgb F, and a decrease in both Hgb A and A2, correlates best with which thalassemia?

Answer 19

delta-beta thalassemia minor

Question 20

8-hydroxyquinoline and 0-cresolphthalein complexone reagent is commonly used in the determination of what?

Answer 20

calcium levels

Question 21

If CSF tubes 1-3 cannot be analyzed within one hour, what must be done and why?

Answer 21

store them at room temperature to avoid the destruction of any Neisseria meningitidis that may be present

Question 22

What organism is catalase +, coagulase =, and novobiocin resistant?

Answer 22

Staphylococcus saprophyticus

Question 23

Which blood component provides the best source of fibrinogen to patients with hypofibrinogenemia?

Answer 23

cryoprecipitate

Question 24

Deviations from Beer’s Law are caused by what?

Answer 24

stray light

Question 25

Which lymphokine is most responsible for an increase in natural killer cell activity, and a decrease in viral replication in cells?

Answer 25

Interferon gamma

Question 26

Which staining method demonstrates the metachromatic granules of Corynebacterium diptheriae?

Answer 26

methylene blue

Question 27

What is the most recent algorithm used to confirm HIV in patients who have a positive ELISA?

Answer 27

HIV-1/HIV-2 antibody differential immunoassay