Question 1

Which of the following is most likely to interact with arterial walls, leading to deposition of cholesterol, and initiating or worsening atherosclerosis?

Options :

A : Large buoyant LDL

B : Small dense LDL

C : LDL phenotype 'A'

Answer: B

Question 2

Which immune elements are involved in a POSITIVE TB skin test?

Options :

A : IgE T cells and macrophages

B : Nkcells and IgG antibodies

C : B cells and IgM antibodies

D : Epithelial skin cells

Answer: C

Question 3

Provide the equivalent measurement for one pint.

Options :

A : 4.2 liters

B : 0.25 liters

C : 0.1 liter

D : 0.474 liters

Answer: D

Question 4

IgE levels are often increased in patients with allergic disease. IgE binds to the membranes of mast cells and basophils, and if specific antigen is present to react with the IgE molecule, degranulation of these cells occurs, releasing histamines, and other substances into the blood or tissues. Which of the following immunoglobulin classes is chiefly responsible for the degranulation of mast cells and basophils:

Options :

A : IgG

B : IgA

C : IgM

D : IgE

Answer: D

Question 5

Which of the following testing options would be classified as waived testing by CLIA standards?

Options :

A : Complete blood count (CBC)

B : PCR testing

C : Blood glucose for home use

D : Microscopic examination for the presence of bacteria

Answer: C