Pharmacology Questions Part 2 Answers and Rationale
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Answer C. Glycocalyx is a viscous polysaccharide or polypeptide slime that covers microbes. It enhances adherence to surfaces, resists phagocytic engulfment by the white blood cells, and prevents antibiotics from contacting the microbe. Glycocalyx does not have the effects in options B-D.
Answer B. The child can move his extremities and function in a normal... Continue Reading
Pharmacology Questions Part 2
1. An infection in a central venous access device is not eliminated by giving antibiotics through the catheter. How would bacterial glycocalyx contribute to this?
a. It protects the bacteria from antibiotic and immunologic destruction.
b. Glycocalyx neutralizes the antibiotic rendering it ineffective.
c. It competes with the antibiotic for binding sites... Continue Reading
Pharmacology Questions Part 1 Answers and Rationale
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Answer B. Acetaminophen is extensively metabolized by pathways in the liver. Toxic doses of acetaminophen deplete hepatic glutathione, resulting in accumulation of the intermediate agent, quinine, which leads to hepatic necrosis. Prolonged use of acetaminophen may result in an increased risk of renal dysfunction, but a single overdose does not precipitate... Continue Reading
Pharmacology Questions Part 1
1. Walter, teenage patient is admitted to the hospital because of acetaminophen (Tylenol) overdose. Overdoses of acetaminophen can precipitate life-threatening abnormalities in which of the following organs?
a. Lungs
b. Liver
c. Kidney
d. Adrenal Glands
2. A contraindication for topical corticosteroid usage in a male patient with atopic... Continue Reading
NCLEX: Pharmacology Practice Test Answers and Rationale
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1. C. The ointment is placed in the lower conjunctival sac so it will not scratch the eye itself and will get well distributed.
2. D. The physician, nurse, and pharmacist all are licensed professionals and share responsibility for errors.
3. B. The decreased circulation to the kidney and reduced liver function tend to allow drugs to accumulate and have toxic... Continue Reading
NCLEX: Pharmacology Practice Test
The nursery nurse is putting erythromycin ointment in the newborn’s eyes to prevent infection. She places it in the following area of the eye:
under the eyelid
on the cornea.
in the lower conjunctival sac
by the optic disc.
The physician orders penicillin for a patient with streptococcal pharyngitis. The nurse administers the drug as ordered, and the patient has an... Continue Reading