Nokea
A patient will begin taking streptomycin as part of the medication regimen to treat tuberculosis. Before administering this medication, the nurse will review which laboratory values in the patient's medical record?
- A. Complete blood count (CBC) with differential white cell count
- B. Blood urea nitrogen (BUN) and creatinine
- C. Potassium and magnesium levels
- D. Serum fasting glucose
Correct Answer: B
Rationale: Streptomycin risks nephrotoxicity, requiring renal function (BUN, creatinine) checks; CBC or electrolytes are less critical. Streptomycin can cause significant renal toxicity.
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Sarah, a 42-year-old female, requests a prescription for an anorexiant to treat her obesity. A trial of phentermine is prescribed. Prescribing precautions include:
- A. Understanding that obesity is a contraindication to prescribing phentermine
- B. Anorexiants may cause tolerance and should only be prescribed for 6 months
- C. Patients should be monitored for postural hypotension
- D. Renal function should be monitored closely while on anorexiants
Correct Answer: C
Rationale: Phentermine can cause postural hypotension, requiring monitoring.
Which of these beta-blockers is a Class III antiarrhythmic agent?
- A. Metoprolol
- B. Esmolol
- C. Sotalol
- D. Bucindolol
Correct Answer: C
Rationale: Sotalol has both beta-blocking and potassium channel-blocking (Class III) properties, prolonging the action potential.
The mean weight of 500 college students is 70 kg and the standard deviation is 3 kg. Assuming that the weight is normally distributed, determine how many students weigh 64 kg or less.
- A. 5
- B. 11
- C. 15
- D. 20
Correct Answer: B
Rationale: P(X ≤ 64) equals P(X < 64) in a continuous distribution since P(X=64) = 0. From the previous calculation, P(Z < -2) ≈ 0.0228, so 0.0228 * 500 ≈ 11, consistent with the document.
A 73-year-old male patient is being discharged home today. The discharge order reads: Take 10 mL of guaifenesin (Robitussin) PO q4h. This over-the-counter pharmaceutical comes in bottles with plastic measuring caps. How much should the nurse teach the patient to take at home?
- A. 1/2 tsp
- B. 1 tsp
- C. 2 tsp
- D. 1 tbsp
Correct Answer: C
Rationale: 10 mL equals 2 teaspoons (5 mL = 1 tsp), so the patient should take 2 tsp per dose.
A nurse is teaching the family of a child who has Cystic Fibrosis and a new prescription for Acetylcysteine. Which of the following information should the nurse include in the instructions?
- A. Expect this medication to suppress your cough.
- B. Expect this medication to smell like rotten eggs.
- C. Expect this medication to cause euphoria.
- D. Expect this medication to turn your urine orange.
Correct Answer: B
Rationale: Acetylcysteine has a sulfur-like odor , a notable characteristic to prepare the family for.