4 Flashcards
What part of the body synthesizes and secretes B-type natriuretic peptide (BNP)?
heart
What is the nucleic acid content of togavirus?
RNA
What is the nucleic acid content of coronavirus?
RNA
What is the nucleic acid content of herpesvirus?
DNA
What is the nucleic acid content of adenovirus?
DNA
White blood cell casts most likely indicate disease of what organ?
kidneys
What two procedures can confirm the presence of Bence-Jones proteins?
immunofixation or immunoelectrophoresis
What distinguishes vancomycin-resistant E. faecium and E. faecalis from other Enterococcus species?
non-motility
What is the expected serum osmolality value in cases of dehydration or diabetes insipidus?
increased
What do VLDL transport?
endogenous triglycerides
What media selects for Campylobacter jejuni?
Skirrow’s blood agar
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?
Hazard Communication 1910.1200
What three methods are capable of detecting Clostridium difficile in less than 48 hours?
glutamate dehydrogenase (GDH), antigenic detection of the A and B toxins, and PCR
What organism is most likely responsible for septic reactions associated with red blood cell transfusions?
Yersinia entercolitica
What is the composition of granules associated with basophilic stippling?
aggregation of ribosomes
Which virus is most often reported as the cause of infection leading to aplastic crisis in sickle cell patients?
parvovirus B19
What four things are Enterococci intrinsically resistant to?
aminoglycoside, clindamycin, trimethoprim-sulfamethoxasole, and cephalosporins
T or F: The first time a cell containing Hgb SS is deoxygenated, it forms an irreversibly sickled cell.
false
An electrophoretic pattern showing an increase in Hgb F, and a decrease in both Hgb A and A2, correlates best with which thalassemia?
delta-beta thalassemia minor
8-hydroxyquinoline and 0-cresolphthalein complexone reagent is commonly used in the determination of what?
calcium levels
If CSF tubes 1-3 cannot be analyzed within one hour, what must be done and why?
store them at room temperature to avoid the destruction of any Neisseria meningitidis that may be present
What organism is catalase +, coagulase =, and novobiocin resistant?
Staphylococcus saprophyticus
Which blood component provides the best source of fibrinogen to patients with hypofibrinogenemia?
cryoprecipitate
Deviations from Beer’s Law are caused by what?
stray light
Which lymphokine is most responsible for an increase in natural killer cell activity, and a decrease in viral replication in cells?
Interferon gamma
Which staining method demonstrates the metachromatic granules of Corynebacterium diptheriae?
methylene blue
What is the most recent algorithm used to confirm HIV in patients who have a positive ELISA?
HIV-1/HIV-2 antibody differential immunoassay
