Which of the following statements concerning folic acid (folacin) functions are true:

Nurselytic

Home

ATI RN

ATI RN

ATI RN Test Bank

Cardiovascular Drugs Pharmacology Practice Questions Questions

Question 1 of 5

Which of the following statements concerning folic acid (folacin) functions are true:

A. Active functional form is pyridoxal phosphate, which is an essential coenzyme for transamination and decarboxylation of amino acids in more than 50 different enzyme systems B. Essential constituent of coenzyme A, the important coenzyme for acyl transfer in the TCA cycle and de novo fatty acid synthesis C. Carrier of one-carbon (e.g. methyl) groups that are added to, or removed from, metabolites such as histidine, serine, methionine, and purines D. An extremely important antioxidant, which protects cell membrane lipids from peroxidation by breaking the chain reaction of free radical formation to which polyunsaturated fatty acids are particularly vulnerable

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 2 of 5

Vitamin D3 increases serum calcium and phosphate. This consideration is:

A. TRUE B. FALSE C. All D. None

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 3 of 5

Which of the following statements refers to plicamycin (formerly mithramycin):

A. Duration of action is usually several days B. Mechanism of cytotoxic action appears to involve its binding to DNA, possibly through an antibiotic-Mg2+ complex. C. The drug causes plasma calcium levels to decrease, apparently through an action on osteoclasts that is independent of its action on tumor cells and useful in hypercalcemia. D. All of the above.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 4 of 5

Minimal duration of antibacterial treatment usually is:

A. Not less than 1 day B. Not less than 5 days C. Not less than 10-14 days D. Not less than 3 weeks

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 5 of 5

Characteristics of polyenes are following, except:

A. Alter the structure and functions of cell membranes B. Broad-spectrum C. Fungicidal effect D. Nephrotoxicity, hepatotoxicity

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Access More Questions!

ATI RN Basic

$89/ 30 days

ATI RN Premium

$150/ 90 days

Similar Questions