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A client with a new diagnosis of diabetes mellitus is learning to self-administer insulin. Which instruction should the nurse include?
- A. Store the insulin in the freezer.
- B. Administer the insulin at the same site each time.
- C. Rotate injection sites within the same region.
- D. Shake the vial vigorously before drawing up the insulin.
Correct Answer: C
Rationale: The correct answer is C: Rotate injection sites within the same region. This is important to prevent lipohypertrophy and ensure proper insulin absorption. Administering insulin at the same site each time (B) can lead to tissue damage. Storing insulin in the freezer (A) can alter its effectiveness. Shaking the vial vigorously (D) can cause air bubbles and affect insulin dosage accuracy. Rotation of injection sites within the same region is crucial for consistent absorption and preventing complications.
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A patient with hyperlipidemia is prescribed atorvastatin. What lab test should be monitored periodically to assess for adverse effects?
- A. Liver function tests
- B. Complete blood count
- C. Blood glucose levels
- D. Serum potassium
Correct Answer: A
Rationale: Step-by-step rationale:
1. Atorvastatin is a statin medication commonly known to potentially cause liver damage.
2. Monitoring liver function tests periodically helps assess for any liver abnormalities.
3. Elevated liver enzymes may indicate liver injury from atorvastatin.
4. Monitoring liver function tests allows for early detection and management of adverse effects.
Summary:
A: Monitoring liver function tests is crucial due to atorvastatin's potential hepatotoxicity.
B: Complete blood count is not typically affected by atorvastatin.
C: Blood glucose levels are not directly related to atorvastatin use.
D: Serum potassium is not specifically monitored for atorvastatin-related adverse effects.
A patient with a myocardial infarction (MI) is being treated with intravenous morphine. What is the primary reason for administering morphine to this patient?
- A. To reduce pain.
- B. To decrease anxiety.
- C. To reduce cardiac workload.
- D. To increase respiratory rate.
Correct Answer: C
Rationale: The primary reason for administering morphine to a patient with MI is to reduce cardiac workload. Morphine acts as a vasodilator and decreases preload and afterload on the heart, reducing myocardial oxygen demand. This helps to improve coronary blood flow and decrease the workload on the heart muscle, which is crucial in the setting of an MI.
Explanation for other choices:
A: While morphine can help reduce pain in MI, the primary reason for administering it is to reduce cardiac workload.
B: Morphine may have a calming effect, but the primary goal is to reduce cardiac workload.
D: Morphine can actually decrease respiratory rate as a side effect, making this choice incorrect.
A client with liver cirrhosis is prescribed lactulose. What is the purpose of this medication?
- A. To lower blood sugar levels
- B. To reduce ammonia levels
- C. To treat liver inflammation
- D. To improve bile flow
Correct Answer: B
Rationale: Rationale: Lactulose is prescribed for liver cirrhosis to reduce ammonia levels. It works by promoting the excretion of ammonia in the stool, preventing its accumulation in the bloodstream. This helps prevent hepatic encephalopathy, a serious complication of cirrhosis. Other choices are incorrect because lactulose does not directly affect blood sugar levels, liver inflammation, or bile flow in the context of liver cirrhosis.
A patient is admitted with a diagnosis of myasthenia gravis. What symptom should the nurse expect to find during the assessment?
- A. Joint pain
- B. Muscle weakness
- C. Loss of sensation
- D. Severe headache
Correct Answer: B
Rationale: The correct answer is B: Muscle weakness. Myasthenia gravis is characterized by muscle weakness due to an autoimmune attack on acetylcholine receptors at the neuromuscular junction. This leads to impaired muscle contraction and weakness, especially in the face, neck, and extremities. Joint pain (A) is not a typical symptom of myasthenia gravis. Loss of sensation (C) is more indicative of a sensory nerve disorder rather than a motor disorder like myasthenia gravis. Severe headache (D) is not a common symptom of myasthenia gravis; it is more likely to be associated with other conditions such as migraines or intracranial pathology.
A patient with hyperthyroidism is to receive radioactive iodine therapy. What information should the nurse include in the patient teaching plan?
- A. Avoid close contact with pregnant women for one week.
- B. Take iodine supplement daily.
- C. Restrict fluid intake to 1 liter per day.
- D. Use disposable utensils for all meals.
Correct Answer: A
Rationale: The correct answer is A. The rationale is that radioactive iodine therapy can harm a developing fetus, so patients should avoid close contact with pregnant women for one week. Choice B is incorrect as iodine supplements can interfere with the therapy. Choice C is incorrect as fluid intake should not be restricted unless specifically advised by the healthcare provider. Choice D is incorrect as there is no need to use disposable utensils for all meals.