Nokea
Ototoxicity is more likely if aminoglycosides are administered with which of the following drug classes?
- A. Loop diuretics
- B. Metformin
- C. Vancomycin
- D. Cephalosporins
Correct Answer: A
Rationale: Loop diuretics (e.g., furosemide) enhance aminoglycoside ototoxicity by increasing inner ear damage risk.
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A nurse has received an order to administer two drugs at the same time of the day. The nurse should first:
- A. Wash her hands before handling the medications
- B. Consult a drug guide for compatibility
- C. Question the patient concerning drug allergies
- D. Identify the patient by checking the armband and asking the patient to state his or her name
Correct Answer: B
Rationale: Consulting a drug guide for compatibility is critical to avoid adverse interactions when administering two drugs simultaneously. Hand washing, allergy checks, and patient identification are also essential but follow ensuring drug compatibility to prevent harm.
A pharmaceutical lab states that a drug causes negative side effects in 3 of every 100 patients. To confirm this affirmation, another laboratory chooses 5 people at random who have consumed the drug. What is the probability that at least two experience side effects?
- A. 0.8687
- B. 0.1313
- C. 0.00847
- D. 0.0003
Correct Answer: C
Rationale: The probability of at least two experiencing side effects is P(X≥2) = 1 - [P(X=0) + P(X=1)]. Using binomial calculations: P(X=0) = 0.8687, P(X=1) = (5 choose 1) * 0.03 * 0.97^4 = 0.1342, so P(X≥2) = 1 - (0.8687 + 0.1342) = 0.00847, matching the document.
Which of the following does albumin have the strongest affinity for?
- A. Anionic drugs
- B. Hydrophilic drugs
- C. Hydrophobic drugs
- D. A and C
Correct Answer: C
Rationale: Albumin has the strongest affinity for hydrophobic drugs , which bind to its hydrophobic pockets, unlike hydrophilic drugs; anionic drugs may bind but less preferentially.
The home health care nurse is visiting a client who was recently diagnosed with type 2 diabetes mellitus. The client is prescribed repaglinide (Prandin) and metformin (Glucophage) and asks the nurse to explain these medications. The nurse should reinforce which instructions to the client?(Select one that does not apply.).
- A. Diarrhea can occur secondary to the metformin.
- B. The repaglinide is not taken if a meal is skipped.
- C. The repaglinide is taken 30 minutes before eating.
- D. Candy or another simple sugar is carried and used to treat mild hyperglycemia episodes.
Correct Answer: D
Rationale: Repaglinide is a rapid-acting oral hypoglycemic agent that stimulates pancreatic insulin secretion that should be taken before meals, and that should be withheld if the client does not eat. Hypoglycemia is a side effect of repaglinide and the client should always be prepared by carrying a simple sugar with her or him at all times. Metformin is an oral hypoglycemic given in combination with repaglinide and works by decreasing hepatic glucose production. A common side effect of metformin is diarrhea. Correct answers include: 1, 2, 3, 4.
The nurse would expect to see an adjusted dosage in what patients? (Select one that does not apply.)
- A. Young adult women
- B. older adults
- C. Infants
- D. Neonates
Correct Answer: A
Rationale: Infants, neonates, and older adults require dosage adjustments due to differences in metabolism and organ function.