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 A
Explanation
Choice A Reason:
Continuing to monitor is the most appropriate action in this scenario. The patient has a regular heart rhythm and a heart rate of 60 beats per minute, which is within the normal range for sinus bradycardia. The PR interval is 0.20 seconds, which is at the upper limit of normal. The patient’s vital signs are stable, with a blood pressure of 118/68 mm Hg, a respiratory rate of 16 breaths per minute, and a temperature of 98.8°F (37°C). There are no signs of hemodynamic instability or symptoms that would necessitate immediate intervention. Therefore, ongoing monitoring is sufficient to ensure the patient’s condition remains stable.
Choice B Reason:
Administering clonidine is not appropriate in this situation. Clonidine is an antihypertensive medication that can lower blood pressure and heart rate. Given that the patient’s blood pressure and heart rate are within normal ranges, administering clonidine could potentially cause hypotension and bradycardia, leading to adverse effects. Therefore, clonidine is not indicated for this patient.
Choice C Reason:
Administering atropine is not necessary for this patient. Atropine is used to treat symptomatic bradycardia, where the heart rate is abnormally slow and causing symptoms such as dizziness, hypotension, or syncope. In this case, the patient’s heart rate is 60 beats per minute, which is within the normal range for sinus bradycardia, and there are no symptoms indicating the need for atropine. Therefore, atropine is not required.
Choice D Reason:
Administering digoxin is also not appropriate. Digoxin is a cardiac glycoside used to treat heart failure and certain types of arrhythmias, such as atrial fibrillation. It can slow the heart rate and increase the force of cardiac contractions. In this scenario, the patient does not have any indications for digoxin therapy, such as heart failure or atrial fibrillation, and their heart rate is already within the normal range. Therefore, digoxin is not indicated.
Correct Answer is A
Explanation
Choice A Reason:
Occasional palpitations are a common symptom of supraventricular tachycardia (SVT) with a non-sustained ventricular response. Palpitations are sensations of a rapid, fluttering, or pounding heartbeat, which occur due to the irregular and fast heart rate characteristic of SVT. These palpitations can be intermittent and may vary in intensity, often causing discomfort and anxiety in patients.
Choice B Reason:
Weakness can be associated with SVT, but it is not as specific or common as palpitations. Weakness may occur due to the reduced cardiac output and decreased perfusion to the muscles during episodes of rapid heart rate. However, it is not the primary symptom that nurses would anticipate in patients with SVT.
Choice C Reason:
Shortness of breath is another symptom that can occur with SVT, especially during prolonged episodes. The rapid heart rate can lead to decreased efficiency in blood circulation, causing the patient to feel breathless. While shortness of breath is a significant symptom, palpitations are more directly associated with the diagnosis of SVT.
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