Nokea
The healthcare provider prescribes an IV solution of isoproterenol (Isuprel) 1 mg in 250 ml of D5W at 300 mcg/hour. The nurse should program the infusion pump to deliver how many ml/hour?
- A. 50 ml/hour
- B. 25 ml/hour
- C. 75 ml/hour
- D. 100 ml/hour
Correct Answer: C
Rationale: To calculate the infusion rate, convert 1 mg to 1,000 mcg (1 mg = 1,000 mcg) and then use the formula D/H x Q, where D is the desired dose, H is the dose on hand, and Q is the quantity of solution. In this case, it would be 300 mcg/hour / 1,000 mcg x 250 ml = 75 ml/hour. Therefore, the nurse should program the infusion pump to deliver 75 ml/hour. Choice A (50 ml/hour), Choice B (25 ml/hour), and Choice D (100 ml/hour) are incorrect as they do not correspond to the calculated rate of 75 ml/hour.
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The nurse is caring for a client with chronic kidney disease (CKD) who is receiving erythropoietin therapy. Which laboratory value should be closely monitored?
- A. Serum potassium level
- B. Hemoglobin level
- C. White blood cell count
- D. Serum calcium level
Correct Answer: A
Rationale: The correct answer is A: Serum potassium level. When a client with chronic kidney disease is receiving erythropoietin therapy, monitoring serum potassium levels is crucial due to the risk of developing hyperkalemia. Erythropoietin can stimulate red blood cell production, leading to an increase in potassium levels. Monitoring potassium helps prevent complications associated with hyperkalemia, such as cardiac arrhythmias. Choices B, C, and D are incorrect because while hemoglobin levels are relevant in assessing the effectiveness of erythropoietin therapy, monitoring potassium levels is more critical in this scenario.
A client with a history of rheumatoid arthritis is prescribed methotrexate. Which laboratory value should the nurse monitor closely?
- A. Liver function tests
- B. Complete blood count
- C. Serum creatinine
- D. Prothrombin time
Correct Answer: C
Rationale: Serum creatinine should be closely monitored in a client receiving methotrexate, as the medication can cause nephrotoxicity. Monitoring serum creatinine levels helps assess kidney function and detect potential nephrotoxic effects of methotrexate. Liver function tests (Choice A) are important to monitor for hepatotoxicity caused by methotrexate. While methotrexate can cause bone marrow suppression, leading to anemia, leukopenia, and thrombocytopenia, monitoring a complete blood count (Choice B) is essential but not the priority in this case. Prothrombin time (Choice D) is not typically affected by methotrexate therapy and is not the primary laboratory value to monitor in this situation.
The nurse is caring for a client who is postoperative following a thyroidectomy. Which assessment finding is most concerning?
- A. Slight difficulty swallowing
- B. Hoarse voice
- C. Positive Chvostek's sign
- D. Pain at the incision site
Correct Answer: C
Rationale: A positive Chvostek's sign is the most concerning assessment finding as it suggests hypocalcemia, which is a potential complication following thyroidectomy. Hypocalcemia can lead to serious complications such as tetany and laryngospasm. Immediate intervention is required to prevent further complications. Choices A, B, and D are common post-thyroidectomy findings and are expected during the immediate postoperative period. Slight difficulty swallowing may be due to postoperative swelling, a hoarse voice may be temporary due to intubation trauma, and pain at the incision site is normal after surgery.
A client is admitted with a diagnosis of sepsis. Which assessment finding is most concerning to the nurse?
- A. Temperature of 101.5°F
- B. Heart rate of 110 beats per minute
- C. Respiratory rate of 24 breaths per minute
- D. Blood pressure of 90/60 mmHg
Correct Answer: D
Rationale: A blood pressure of 90/60 mmHg in a client with sepsis is concerning for septic shock, a life-threatening condition that requires immediate intervention. Hypotension is a severe manifestation of sepsis that can lead to poor tissue perfusion and organ failure. While the other assessment findings such as an elevated temperature, increased heart rate, and respiratory rate are also common in sepsis, hypotension is particularly alarming as it indicates a critical state of shock and necessitates urgent medical attention.
A female client receives a prescription for alendronate sodium (Fosamax) to treat her newly diagnosed osteoporosis. What instruction should the nurse include in the client's teaching plan?
- A. Take on an empty stomach with a full glass of water.
- B. Take with food to avoid stomach upset.
- C. Take before bedtime with a light snack.
- D. Take with milk to enhance absorption.
Correct Answer: A
Rationale: The correct answer is to take alendronate on an empty stomach with a full glass of water. This instruction is essential to ensure proper absorption and prevent esophageal irritation. Taking alendronate with food, before bedtime with a light snack, or with milk can interfere with its absorption and effectiveness, leading to potential side effects or reduced therapeutic benefits.