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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You are to infuse 1,200 mL of IV fluid over 6 hours using a drop factor of 10 gtt/mL. What is the flow rate in drops per minute?
- A. 30 gtt/min
- B. 33 gtt/min
- C. 40 gtt/min
- D. 50 gtt/min
Correct Answer: B
Rationale: Flow rate = (1,200 mL 10 gtt/mL) ÷ (6 60) = 12,000 ÷ 360 = 33.33 gtt/min, rounded to 33 gtt/min.
The clinic nurse is performing an admission assessment on a client. The nurse notes that the client is taking azelaic acid (Azelex). Because of the medication prescription, the nurse would suspect that the client is being treated for:
- A. Acne
- B. Eczema
- C. Hair loss
- D. Herpes simplex
Correct Answer: A
Rationale: Azelaic acid is a topical medication used to treat mild to moderate acne. The acid appears to work by suppressing the growth of Propionibacterium acnes and decreasing the proliferation of keratinocytes. Options 2, 3, and 4 are incorrect.
A nurse is caring for a patient who is supposed to receive two drugs at the same time. What is the nurses priority action?
- 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 name.
Correct Answer: B
Rationale: A nurse should first consult a drug guide for compatibility when two or more drugs are being given at the same time. After compatibility is determined the medication can be administered. The nurse will perform hand hygiene, check for patient allergies, and ensure the right patient receives the medication by using two identifiers.
A drug which does not produce any action by itself but decreases the slope of the log dose-response curve and suppresses the maximal response to another drug is a...
- A. Physiological antagonist
- B. Competitive antagonist
- C. Noncompetitive antagonist
- D. Partial agonist
Correct Answer: C
Rationale: Noncompetitive antagonists reduce maximal response (efficacy) without shifting potency, matching the description.
Under new U.S. Food and Drug Administration labeling, Pregnancy Categories will be:
- A. Strengthened with a new coding such as C+ or C- to discern when a drug is more or less toxic to the fetus
- B. Changed to incorporate a pregnancy risk summary and clinical considerations on the drug label
- C. Eliminated, and replaced with a link to the National Library of Medicine TOXNET Web site for in-depth information regarding pregnancy concerns
- D. Clarified to include information such as safe dosages in each trimester of pregnancy
Correct Answer: B
Rationale: FDA replaced categories with risk summaries and clinical considerations for clearer, narrative-based guidance, effective 2015.