A nurse is caring for a client who has a pulmonary embolism and has a new prescription for enoxaparin 1.5 mg/kg/dose subcutaneously every 12 hours. The client weighs 245 lbs. How many mg should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["167 "]
To calculate the dose of enoxaparin, follow these steps:
1) Convert the client's weight from pounds to kilograms:
245 lbs / 2.2046 (kg/lb) = 111.13 kg (rounded to the nearest whole number, it's 111 kg).
2) Multiply the weight in kilograms by the prescribed dose per kilogram:
111 kg x 1.5 mg/kg = 166.5 mg.
Round the answer to the nearest whole number, so the nurse should administer 167 mg per dose of enoxaparin every 12 hours to the client with a pulmonary embolism.
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Naxlex Comprehensive Predictor Exams
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Correct Answer is B
Explanation
Choice A Reason: Observing for cerebrospinal fluid (CSF) leaks from the evacuation site is important, but not the first action that the nurse should take. CSF leaks can indicate a breach in the dura mater, which can increase the risk of infection and meningitis. The nurse should inspect the dressing and the nose and ears for any clear or bloody drainage, and report any findings to the provider. However, these measures are secondary to ensuring adequate oxygenation and perfusion.
Choice B Reason: The first action the nurse should take when caring for a client post-evacuation of a subdural hematoma is to check the oximeter to ensure adequate oxygenation. Maintaining proper oxygenation is a priority because hypoxia and hypercapnia can lead to cerebral vasodilation, increasing intracranial pressure (ICP) and worsening neurological outcomes.Key Concept: Always prioritize Airway, Breathing, and Circulation (ABCs) when determining the most immediate nursing intervention.
Choice C Reason: Assessing for an increase in temperature is another important action, but not the first one that the nurse should take. An increase in temperature can indicate an infection, inflammation, or damage to the hypothalamus, which can affect the thermoregulation of the body. The nurse should monitor the temperature and administer antipyretics as prescribed. However, these measures are secondary to ensuring adequate oxygenation and perfusion.
Choice D Reason:This is crucial, but oxygenation status should be checked first since low oxygen levels can worsen ICP.
Correct Answer is A
Explanation
Choice A Reason: This is correct because dopamine is a vasopressor that increases the contractility and stroke volume of the heart, which results in an increased systolic blood pressure.
Choice B Reason: This is incorrect because dopamine can cause tachycardia as a side effect, but this does not indicate a therapeutic effect. An increased radial heart rate can also indicate other conditions, such as anxiety, fever, or dehydration.
Choice C Reason: This is incorrect because dopamine does not reduce cardiac output, but rather increases it by improving the pumping function of the heart.
Choice D Reason: This is incorrect because dopamine does not reduce urine output, but rather increases it by stimulating the renal blood vessels and enhancing renal perfusion.
