Nokea
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.
You may also like to solve these questions
A patient with a diagnosis of deep vein thrombosis (DVT) is receiving heparin therapy. Which laboratory test should the nurse monitor to evaluate the effectiveness of the heparin therapy?
- A. Prothrombin time (PT)
- B. Partial thromboplastin time (PTT)
- C. Bleeding time
- D. Platelet count
Correct Answer: B
Rationale: The correct answer is B: Partial thromboplastin time (PTT). PTT is used to monitor the effectiveness of heparin therapy because heparin primarily affects the intrinsic pathway of the coagulation cascade, which is reflected in the PTT results. Monitoring PTT helps to ensure that the patient's blood is within the therapeutic range for anticoagulation.
A: Prothrombin time (PT) is used to monitor warfarin therapy, which affects the extrinsic pathway of the coagulation cascade.
C: Bleeding time is not typically used to monitor heparin therapy effectiveness.
D: Platelet count is important to monitor for heparin-induced thrombocytopenia, but it does not directly reflect the effectiveness of heparin therapy in preventing or treating DVT.
In a client with liver cirrhosis experiencing confusion and disorientation, what condition is most likely causing these symptoms?
- A. Hepatic encephalopathy
- B. Hypoglycemia
- C. Electrolyte imbalance
- D. Dehydration
Correct Answer: A
Rationale: The correct answer is A: Hepatic encephalopathy. In liver cirrhosis, the liver's ability to detoxify ammonia is impaired, leading to elevated ammonia levels in the blood. This excess ammonia crosses the blood-brain barrier, causing neurological symptoms like confusion and disorientation. Hypoglycemia (B), electrolyte imbalance (C), and dehydration (D) can also contribute to altered mental status, but in a cirrhotic patient, hepatic encephalopathy is the most likely cause due to impaired ammonia metabolism.
A patient with Parkinson's disease is prescribed levodopa. What dietary modification should the nurse suggest to the patient?
- A. Increase intake of vitamin C.
- B. Limit foods high in protein.
- C. Avoid foods rich in fiber.
- D. Increase sodium intake.
Correct Answer: B
Rationale: The correct answer is B: Limit foods high in protein. Levodopa competes with amino acids for absorption in the small intestine, so consuming high-protein foods can reduce its effectiveness. Limiting protein intake can help maximize the absorption and efficacy of levodopa. Increasing vitamin C (option A) is not directly related to levodopa metabolism. Avoiding fiber (option C) is not necessary for levodopa therapy. Increasing sodium intake (option D) is not indicated for levodopa treatment in Parkinson's disease.
What instruction should a patient with a history of hypertension be provided when being discharged with a prescription for a thiazide diuretic?
- A. Avoid foods high in potassium.
- B. Take the medication at bedtime.
- C. Monitor weight daily.
- D. Limit fluid intake to 1 liter per day.
Correct Answer: C
Rationale: Rationale:
C is correct because thiazide diuretics can cause fluid retention, leading to weight gain, which may indicate worsening heart failure or hypertension. Daily weight monitoring helps detect fluid retention early, enabling timely intervention.
Summary:
A: Incorrect. Thiazide diuretics can cause potassium loss, so avoiding potassium-rich foods is not necessary.
B: Incorrect. Taking the medication in the morning is preferred to prevent nocturia and sleep disturbances.
D: Incorrect. Fluid intake should not be limited unless advised by a healthcare provider to prevent dehydration.
The sister of a patient diagnosed with BRCA gene¢â‚¬"related breast cancer asks the nurse, 'Do you think I should be tested for the gene?' Which response by the nurse is most appropriate?
- A. In most cases, breast cancer is not caused by the BRCA gene.
- B. It depends on how you will feel if the test is positive for the BRCA gene.
- C. There are many things to consider before deciding to have genetic testing.
- D. You should decide first whether you are willing to have a bilateral mastectomy.
Correct Answer: C
Rationale: The correct answer is C because genetic testing for the BRCA gene involves complex considerations beyond just the test results. By stating that there are many things to consider before deciding to have genetic testing, the nurse acknowledges the importance of discussing the potential implications of the test result, such as emotional, social, and medical factors. This response promotes informed decision-making and empowers the patient to make a well-considered choice.
Choices A, B, and D are incorrect:
A: This statement is inaccurate as a significant proportion of breast cancers are indeed linked to the BRCA gene mutations.
B: This response oversimplifies the decision-making process by focusing solely on emotional aspects, neglecting other critical factors that should be considered before genetic testing.
D: This option is not appropriate as it suggests a specific treatment option (bilateral mastectomy) without addressing the broader aspects of genetic testing and decision-making.