A client is on intravenous heparin to treat DVT in the right leg. The client’s most recent partial thromboplastin time (PTT) was 25 seconds. What order would the nurse anticipate?
No change to the heparin rate
Decrease the heparin rate
Stop heparin and start warfarin
Increase the heparin rate
The Correct Answer is D
Choice A reason: No change to the heparin rate is not appropriate in this scenario. The normal range for PTT is generally between 25 to 35 seconds. However, for a client on heparin therapy, the target PTT is typically 1.5 to 2.5 times the normal range, which would be approximately 60 to 80 seconds. Since the client’s PTT is only 25 seconds, it indicates that the blood is clotting too quickly, and the heparin dose is insufficient.
Choice B reason: Decreasing the heparin rate would further reduce the anticoagulant effect, which is not advisable given the current PTT of 25 seconds. Lowering the heparin rate could increase the risk of thrombus formation and worsen the deep vein thrombosis (DVT) condition.
Choice C reason: Stopping heparin and starting warfarin is not an immediate solution. Warfarin takes several days to achieve its full anticoagulant effect, and during this transition period, the client would be at risk of clot formation. Heparin provides immediate anticoagulation, which is crucial in the acute management of DVT.
Choice D reason: Increasing the heparin rate is the correct action. The current PTT of 25 seconds is below the therapeutic range for a client on heparin therapy. Increasing the heparin rate will help achieve the desired anticoagulant effect, prolonging the PTT to the target range of 60 to 80 seconds.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A: Periodic Nystagmus
Nystagmus, which is characterized by involuntary eye movements, can be a symptom of various neurological conditions, including bacterial meningitis. However, it is not typically an immediate concern compared to other symptoms. Nystagmus indicates potential issues with the brainstem or cerebellum, but it does not directly threaten the patient’s life or indicate a rapid deterioration in condition. Therefore, while it is important to monitor, it is not the most urgent finding.
Choice B: Severe Unrelenting Headaches
Severe headaches are a common symptom of bacterial meningitis due to the inflammation of the meninges. While they are extremely painful and distressing for the patient, they are not as immediately life-threatening as a decreased level of consciousness. Headaches indicate increased intracranial pressure, which is serious, but the priority is to address symptoms that indicate a more rapid decline in neurological function.
Choice C: Photophobia During the Day
Photophobia, or sensitivity to light, is another common symptom of meningitis. It results from the irritation of the meninges and is often accompanied by headaches. While photophobia can be very uncomfortable and indicative of meningitis, it is not an immediate concern compared to a decreased level of consciousness. Photophobia does not directly indicate a life-threatening situation.
Choice D: Decreased Level of Consciousness
A decreased level of consciousness is the most immediate concern for a nurse caring for a patient with bacterial meningitis. This symptom indicates a significant and potentially rapid decline in the patient’s neurological status. It can be a sign of increased intracranial pressure, brain swelling, or other severe complications. Immediate medical intervention is required to prevent further deterioration and potential fatality. Monitoring and addressing changes in consciousness are critical in managing bacterial meningitis effectively.
Correct Answer is ["E","F","G"]
Explanation
Choice A reason:
Hypertension is not typically associated with myxedema coma. Myxedema coma is characterized by severe hypothyroidism, which usually leads to low blood pressure (hypotension) rather than high blood pressure (hypertension). Therefore, hypertension is not a clinical manifestation that indicates progression to myxedema coma.
Choice B reason:
Restlessness is not a common symptom of myxedema coma. Patients with myxedema coma often present with lethargy, confusion, or even coma due to the severe slowing of metabolic processes. Restlessness is more commonly associated with hyperthyroidism or other conditions that increase metabolic activity.
Choice C reason:
An increased level of alertness is contrary to the symptoms of myxedema coma. Myxedema coma typically presents with decreased mental status, including confusion, stupor, or coma. Therefore, an increased level of alertness would not be indicative of progression to myxedema coma.
Choice D reason:
Tachycardia (rapid heart rate) is not a typical symptom of myxedema coma. Instead, myxedema coma is associated with bradycardia (slow heart rate) due to the severe hypothyroid state. Tachycardia is more commonly seen in hyperthyroid conditions.
Choice E reason:
Hypotension (low blood pressure) is a key clinical manifestation of myxedema coma. The severe hypothyroid state leads to decreased cardiac output and vascular resistance, resulting in hypotension. This is a critical sign that the nurse should recognize as indicative of progression to myxedema coma.
Choice F reason:
Bradycardia (slow heart rate) is another hallmark of myxedema coma. The decreased metabolic rate in severe hypothyroidism leads to a reduced heart rate. Recognizing bradycardia is essential in identifying the progression to myxedema coma.
Choice G reason:
Hypoventilation (reduced breathing rate) is a significant symptom of myxedema coma. The severe hypothyroid state can lead to respiratory depression, resulting in hypoventilation. This can further exacerbate the patient’s condition and requires immediate medical attention.
Choice H reason:
Hyperventilation (increased breathing rate) is not associated with myxedema coma. Patients with myxedema coma typically experience hypoventilation due to the severe slowing of metabolic processes. Hyperventilation would be more indicative of conditions that increase metabolic activity or respiratory drive.
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