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A patient with anemia is prescribed ferrous sulfate. What advice should the nurse give regarding the administration of this medication?
- A. Take with dairy products to increase absorption.
- B. Take on an empty stomach for best absorption.
- C. Avoid vitamin C while taking this medication.
- D. Take before bedtime.
Correct Answer: B
Rationale: The correct answer is B: Take on an empty stomach for best absorption. Ferrous sulfate is best absorbed on an empty stomach to maximize its effectiveness. When taken with food or dairy products (Choice A), the absorption of iron is reduced. Vitamin C actually enhances the absorption of iron, so avoiding it (Choice C) is not recommended. Taking the medication before bedtime (Choice D) may lead to gastrointestinal side effects and is not optimal for absorption.
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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.
An adolescent patient seeks care in the emergency department after sharing needles for heroin injection with a friend who has hepatitis B. To provide immediate protection from infection, what medication will the nurse administer?
- A. Corticosteroids
- B. Gamma globulin
- C. Hepatitis B vaccine
- D. Fresh frozen plasma
Correct Answer: B
Rationale: The correct answer is B: Gamma globulin. Gamma globulin contains antibodies that can provide immediate passive immunity against hepatitis B virus. Administering corticosteroids (A) would not protect against hepatitis B infection. Hepatitis B vaccine (C) is used for prevention, not immediate protection. Fresh frozen plasma (D) does not contain specific antibodies against hepatitis B.
A patient with asthma is prescribed a corticosteroid inhaler. What is the most important instruction to give to the patient?
- A. Use the inhaler only during asthma attacks.
- B. Rinse the mouth after using the inhaler.
- C. Take a double dose if symptoms worsen.
- D. Avoid using a spacer with the inhaler.
Correct Answer: B
Rationale: The correct answer is B: Rinse the mouth after using the inhaler. This instruction is crucial because corticosteroid inhalers can lead to oral thrush, a fungal infection in the mouth. Rinsing the mouth helps prevent this side effect.
A: Using the inhaler only during asthma attacks is incorrect as corticosteroid inhalers are typically used regularly to manage asthma symptoms.
C: Taking a double dose if symptoms worsen is dangerous and can lead to overdose. Patients should follow the prescribed dosage.
D: Avoiding using a spacer with the inhaler is not a universal instruction. Spacers can actually improve the effectiveness of the medication delivery.
A patient who is receiving chemotherapy for breast cancer develops thrombocytopenia. What should the nurse include in the care plan?
- A. Encourage light exercise.
- B. Avoid intramuscular injections.
- C. Do not administer aspirin.
- D. Use a soft toothbrush for oral care.
Correct Answer: B
Rationale: The correct answer is B: Avoid intramuscular injections. Thrombocytopenia is a condition characterized by low platelet count, which can lead to impaired blood clotting. Intramuscular injections can cause bleeding and bruising due to the decreased ability of blood to clot. Therefore, it is crucial to avoid invasive procedures like intramuscular injections to prevent excessive bleeding in patients with thrombocytopenia. Encouraging light exercise (choice A) can be beneficial for overall health but may not directly address the risk of bleeding. Avoiding aspirin (choice C) is important as it can further increase the risk of bleeding. Using a soft toothbrush for oral care (choice D) is a good practice, but it does not directly address the risk associated with intramuscular injections in patients with thrombocytopenia.
What side effect should be monitored for in a patient with chronic heart failure taking spironolactone?
- A. Hypokalemia
- B. Hyperkalemia
- C. Hyponatremia
- D. Hypernatremia
Correct Answer: B
Rationale: The correct answer is B: Hyperkalemia. Spironolactone is a potassium-sparing diuretic commonly used in patients with heart failure. It works by blocking the aldosterone receptor, leading to potassium retention and potential hyperkalemia. Monitoring potassium levels is crucial as hyperkalemia can increase the risk of arrhythmias and other cardiac complications in heart failure patients.
A: Hypokalemia is incorrect because spironolactone typically causes potassium retention.
C: Hyponatremia and D: Hypernatremia are incorrect as spironolactone does not directly affect sodium levels.
In summary, monitoring for hyperkalemia is essential in patients with heart failure taking spironolactone to prevent adverse cardiac events.