Nokea
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.
You may also like to solve these questions
A nurse is providing teaching to a client who has chronic kidney failure and an AV fistula for hemodialysis with a new prescription for epoetin alfa. Which of the following therapeutic effects of epoetin alfa should the nurse include in the teaching?
- A. Reduces blood pressure
- B. Inhibits clotting of fistula
- C. Promotes RBC production
- D. Stimulates growth of neutrophils
Correct Answer: C
Rationale: The correct answer is C: Promotes RBC production. Epoetin alfa stimulates red blood cell production, which is important for clients with chronic kidney disease who may have anemia due to decreased erythropoietin production by the kidneys. Options A, B, and D are incorrect: epoetin alfa does not directly reduce blood pressure, inhibit clotting of the fistula, or stimulate growth of neutrophils.
A nurse in an outpatient facility is assessing a client who is prescribed furosemide 40 mg daily, but the client reports she has been taking extra doses to promote weight loss. Which of the following findings indicates she is dehydrated?
- A. Urine specific gravity of 1.020
- B. Urine specific gravity of 1.035
- C. Decreased skin turgor
- D. Decreased heart rate
Correct Answer: B
Rationale: The correct answer is B. A urine specific gravity greater than 1.030 is indicative of dehydration as it reflects concentrated urine. Choice A is incorrect as a specific gravity of 1.020 is within the normal range. Choice C, decreased skin turgor, can be a sign of dehydration but is not as specific as urine specific gravity. Choice D, decreased heart rate, is not typically a direct indicator of dehydration.
A nurse is preparing to administer prochlorperazine 2.5 mg IV. Available is prochlorperazine injection 5 mg/mL. How many mL should the nurse administer?
- A. 0.2 mL
- B. 0.5 mL
- C. 1.0 mL
- D. 1.5 mL
Correct Answer: B
Rationale: To determine the volume of prochlorperazine to administer, divide the prescribed dose (2.5 mg) by the concentration of the medication (5 mg/mL). This calculation results in 0.5 mL. Therefore, the nurse should administer 0.5 mL to deliver the correct dose. Choice A (0.2 mL) is incorrect as it miscalculates the dosage. Choices C (1.0 mL) and D (1.5 mL) are also incorrect as they do not accurately reflect the calculated volume needed for the dose.
A nurse is caring for a client who is receiving IV diltiazem for 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 can cause further lowering of blood pressure, so it should not be administered if the client is already hypotensive. Monitoring blood pressure is crucial before giving diltiazem. Choice B, tachycardia, is not a contraindication for diltiazem use; in fact, diltiazem is used to slow down the heart rate. Choice C, decreased level of consciousness, may indicate other issues but is not a direct contraindication for diltiazem. Choice D, history of diuretic use, is not a contraindication by itself; however, caution should be exercised when diltiazem is given with diuretics due to potential interactions.
A nurse is planning to administer chlorothiazide 20 mg/kg/day PO divided equally and administered twice daily for a toddler who weighs 28.6 lb. How many mL should the nurse administer per dose? (Round to the nearest tenth)
- A. 2.6 mL
- B. 2.2 mL
- C. 3.5 mL
- D. 5.0 mL
Correct Answer: A
Rationale: The correct calculation is as follows: The toddler's weight in kg is 13 kg (28.6 lb / 2.2 lb/kg). The total daily dose is 260 mg (20 mg x 13 kg). Therefore, the dose per administration is 130 mg (260 mg / 2). Given the concentration of 250 mg/5 mL, the dose in mL is 2.6 mL (130 mg / (250 mg/5 mL)). Therefore, the nurse should administer 2.6 mL per dose. Choice B, 2.2 mL, is incorrect as it does not reflect the correct calculation. Choices C and D, 3.5 mL and 5.0 mL, are also incorrect and do not align with the accurate dosage calculation based on the given scenario.