The nurse is preparing a prescription for enoxaparin 40 mg subcutaneous (sub) daily. Enoxaparin is available in a pre-filled cartridge labelled, "60 mg per 0.6 mall" How many mL should the nurse administer?
(Enter numeric value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["0.4"]
Step 1: Determine the concentration of enoxaparin. 60 mg is equivalent to 0.6 mall
Step 2: Set up the ratio to find how many mL corresponds to 40 mg. (40 mg) ÷ (60 mg) = x ÷ (0.6 mL)
Step 3: Solve for x. x = (40 mg) × (0.6 mL) ÷ (60 mg) x = 24 ÷ 60 x = 0.4 mL
So, the nurse should administer 0.4 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Pain in the lower legs when walking, also known as intermittent claudication, is a common symptom of PAD but does not indicate an immediate threat to limb viability.
Choice B reason: Black eschar over the ankle ulcer indicates necrotic tissue, which is concerning but not as immediately critical as absent pulses. It does need to be monitored and treated to prevent infection and further complications.
Choice C reason: Absent pedal pulses by Doppler indicate a significant reduction in blood flow to the lower extremities, which can lead to critical limb ischemia and requires immediate intervention to restore perfusion and prevent tissue loss.
Choice D reason: Dependent rubor (redness when the leg is in a dependent position) is a sign of poor arterial circulation but does not require as urgent intervention as absent pedal pulses.
Correct Answer is A
Explanation
Choice A reason: Drawing air in through the nose and exhaling slowly through pursed lips is a technique known as pursed-lip breathing. This method helps improve gas exchange by keeping the airways open longer during exhalation, which aids in the removal of trapped air and reduces dyspneal.
Choice B reason: Increasing the breathing rate for a full 30 seconds is not recommended for clients with emphysema. Rapid breathing can lead to hyperventilation and increased work of breathing, which can exacerbate dyspneal.
Choice C reason: Raising hands above the head to expand the diaphragm might help in some situations, but it is not as effective as pursed-lip breathing for improving gas exchange and reducing dyspneal in clients with emphysema.
Choice D reason: Laying down on each side with knees bent and breathing from the abdomen is a relaxation technique that can help some clients, but it does not specifically address the need for improved gas exchange during episodes of dyspneal.
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