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A nurse is preparing to administer furosemide 4 mg/kg/day PO divided into 2 equal doses daily to a toddler who weighs 22 lb. How many mg should the nurse administer per dose?
- A. 10 mg
- B. 20 mg
- C. 30 mg
- D. 40 mg
Correct Answer: B
Rationale: To calculate the correct dose, first, convert the toddler's weight from pounds to kilograms: 22 lb / 2.2 lb/kg = 10 kg. Next, multiply the weight in kilograms by the dosage: 4 mg/kg x 10 kg = 40 mg/day. Since the total daily dose is divided into 2 equal doses, each dose would be 20 mg. Therefore, the correct answer is 20 mg. Choice A (10 mg) is incorrect because it does not account for the correct weight-based dosage. Choice C (30 mg) and Choice D (40 mg) are incorrect as they do not correctly calculate the dose based on the weight of the toddler and the prescribed dosage per kg.
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A healthcare professional is preparing to administer heparin 8,000 units subcutaneously every eight hrs. The amount available is heparin injection 10,000 units/mL. How many milliliters should the healthcare professional administer per dose?
- A. 0.7 mL
- B. 0.8 mL
- C. 1.0 mL
- D. 1.2 mL
Correct Answer: B
Rationale: Calculation: 8000 units / 10,000 units per mL = 0.8 mL. To correctly administer the prescribed dose of 8000 units, the healthcare professional should draw up 0.8 mL from the 10,000 units/mL vial. Options A, C, and D are incorrect as they do not accurately reflect the calculation based on the available concentration of heparin.
A healthcare provider is assessing a client who is receiving IV gentamicin three times daily. Which of the following findings indicates that the client is experiencing an adverse effect of this medication?
- A. Hypoglycemia
- B. Proteinuria
- C. Nasal congestion
- D. Visual disturbances
Correct Answer: B
Rationale: Corrected Rationale: Gentamicin is known to cause nephrotoxicity as an adverse effect. Proteinuria, which is the presence of excess proteins in the urine, may indicate kidney damage from the medication. Monitoring renal function is crucial in clients receiving gentamicin. Choice A, hypoglycemia, is not a typical adverse effect of gentamicin. Choices C and D, nasal congestion and visual disturbances, are not commonly associated with gentamicin use or its adverse effects.
A nurse is teaching a newly licensed nurse about contraindications to ceftriaxone. The nurse should include a severe allergy to which of the following medications as a contraindication to ceftriaxone?
- A. Gentamicin
- B. Clindamycin
- C. Piperacillin
- D. Sulfamethoxazole-trimethoprim
Correct Answer: C
Rationale: Ceftriaxone is a cephalosporin, and individuals with a penicillin allergy (such as Piperacillin) may have cross-sensitivity, making it contraindicated. Gentamicin (Choice A) belongs to the aminoglycoside class, not related to cephalosporins. Clindamycin (Choice B) is a lincosamide antibiotic and is not typically associated with cross-allergies to cephalosporins. Sulfamethoxazole-trimethoprim (Choice D) is a sulfonamide antibiotic, also not directly related to ceftriaxone.
A nurse is planning to administer diltiazem via IV bolus to a client who has atrial fibrillation. Which of the following findings is a contraindication to the administration of diltiazem?
- A. Hypotension
- B. Tachycardia
- C. Decreased level of consciousness
- D. History of diuretic use
Correct Answer: A
Rationale: The correct answer is A: Hypotension. Diltiazem, a calcium channel blocker, can cause hypotension. Administering diltiazem to a client with hypotension can further lower their blood pressure, leading to adverse effects like dizziness and syncope. Tachycardia (Choice B) is actually a common indication for diltiazem use, as it helps slow down the heart rate in conditions like atrial fibrillation. Decreased level of consciousness (Choice C) may require evaluation but is not a direct contraindication to diltiazem administration. History of diuretic use (Choice D) is not a contraindication to diltiazem, as the two medications can often be safely used together.
A healthcare provider is reviewing laboratory values for a client who reports fatigue and cold intolerance. The client has an increased thyroid-stimulating hormone (TSH) level and a decreased total T3 and T4 level. The healthcare provider should anticipate a prescription for which of the following medications?
- A. Methimazole
- B. Somatropin
- C. Levothyroxine
- D. Propylthiouracil
Correct Answer: C
Rationale: The client's symptoms and lab results indicate hypothyroidism, and levothyroxine is the standard treatment to replace the deficient thyroid hormones. Methimazole and propylthiouracil are used to treat hyperthyroidism by decreasing the production of thyroid hormones. Somatropin is a growth hormone used in conditions of growth hormone deficiency, not for hypothyroidism.