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A client is admitted with deep vein thrombosis (DVT) and is receiving heparin therapy. What is the most important laboratory value to monitor during heparin therapy?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Platelet count
Correct Answer: C
Rationale: The activated partial thromboplastin time (aPTT) is the most important laboratory value to monitor during heparin therapy. It measures the intrinsic pathway of coagulation and is used to assess the effectiveness of heparin as an anticoagulant. Keeping the aPTT within the therapeutic range is crucial to prevent complications such as bleeding or clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, not heparin. Platelet count is important to assess for thrombocytopenia, a potential side effect of heparin, but it is not the primary laboratory value to monitor the effectiveness of heparin therapy.
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A client with a head injury reports severe nausea. What is the nurse's priority action?
- A. Administer anti-nausea medication as prescribed.
- B. Prepare the client for a CT scan.
- C. Elevate the head of the bed and provide an emesis basin.
- D. Notify the healthcare provider immediately.
Correct Answer: D
Rationale: Severe nausea in a client with a head injury may be a sign of increased intracranial pressure. The nurse should notify the healthcare provider immediately to ensure timely intervention, as increased pressure can lead to further complications such as brain herniation. Administering anti-nausea medication or preparing for a CT scan may delay necessary treatment for the underlying cause of the nausea, which could be related to the head injury. Elevating the head of the bed and providing an emesis basin may help manage symptoms but should not be the priority over addressing the potential increase in intracranial pressure.
An S3 heart sound is auscultated in a client in her third trimester of pregnancy. What intervention should the nurse take?
- A. Perform a 12-lead electrocardiogram
- B. Document in the client's record
- C. Notify the healthcare provider immediately
- D. Assess for signs of heart failure
Correct Answer: B
Rationale: An S3 heart sound is often a normal finding in pregnant women due to increased blood volume and cardiac output. The nurse should document the finding as part of the routine assessment unless accompanied by other abnormal symptoms. Performing a 12-lead electrocardiogram (Choice A) is unnecessary for a normal S3 heart sound in pregnancy. Notifying the healthcare provider immediately (Choice C) is premature and may lead to unnecessary interventions. Assessing for signs of heart failure (Choice D) is not indicated as an isolated S3 heart sound is typically benign in pregnancy.
A client with dyspnea is being admitted to the medical unit. To best prepare for the client's arrival, the nurse should ensure that the client's bed is in which position?
- A. Trendelenburg
- B. Supine
- C. Prone
- D. Fowler's
Correct Answer: D
Rationale: Fowler's position (head elevated at 45-60 degrees) improves oxygenation by expanding the lungs, making it the best position for clients with dyspnea. Supine or prone positions restrict lung expansion, and Trendelenburg position (head down) can exacerbate breathing difficulties by increasing pressure on the lungs and diaphragm.
A client with a history of closed head injury has a radial artery catheter in place and complains of numbness and pain distal to the insertion site. What action should the nurse take?
- A. Monitor the site for further complications.
- B. Promptly remove the catheter from the radial artery.
- C. Elevate the client's arm above the heart.
- D. Notify the healthcare provider and prepare for surgery.
Correct Answer: B
Rationale: A weak pulse and numbness distal to a radial artery catheter may indicate occlusion or damage to the artery, and immediate removal of the catheter is necessary to prevent complications. Therefore, promptly removing the catheter from the radial artery (Choice B) is the correct action. Monitoring the site (Choice A) would delay necessary intervention, elevating the client's arm (Choice C) may not address the underlying issue, and notifying the healthcare provider for surgery (Choice D) without removing the catheter promptly could lead to further complications.
A male client admitted for schizophrenia is noted to be diaphoretic and pacing the hallway. What is the most important intervention?
- A. Take the client's temperature and blood pressure.
- B. Encourage the client to rest.
- C. Plan an activity involving physical exercise.
- D. Carefully observe the client throughout the shift.
Correct Answer: D
Rationale: In this scenario, the most important intervention for a male client with schizophrenia who is diaphoretic and pacing the hallway is to carefully observe the client throughout the shift. Diaphoresis and pacing can be indicators of agitation or distress in clients with schizophrenia. Careful observation is crucial to monitor the client's safety, assess for any potential escalation of symptoms, and provide timely intervention if needed. Taking the client's temperature and blood pressure (Choice A) may not address the immediate need for safety and observation. Encouraging the client to rest (Choice B) may not be effective if the client is agitated. Planning an activity involving physical exercise (Choice C) could potentially exacerbate the situation rather than addressing the immediate need for observation and safety.