A client who had a knee replacement surgery receives a prescription for enoxaparin 30 mg subcutaneously every 12 hours for 10 days. The medication is available in 30 mg per 0.3 mL prefilled syringes. How many mL should the practical nurse (PN) administer each day? (Enter numerical value only.)
The Correct Answer is ["0.6"]
- Medication dose: 30 mg enoxaparin
- Medication concentration: 30 mg per 0.3 mL (prefilled syringe)
- Frequency: Every 12 hours
- Duration: 10 days
Calculation:
- Injections per day: Since the medication is given every 12 hours, the client will receive injections 2 times per day (24 hours / 12 hours/injection).
- Total medication per day: To find the total amount of enoxaparin needed per day, multiply the single injection dose by the number of injections:
Total enoxaparin/day = Dose per injection x Number of injections/day = 30 mg/injection x 2 injections/day = 60 mg/day
- Volume of medication per day: Now, we need to find the volume of solution needed to deliver the total daily dose (60 mg) based on the medication concentration (30 mg/0.3 mL). We can achieve this with a proportion:
Volume (mL) / Total dose (mg) = Concentration (mg/mL)
Volume (mL) = (Total dose (mg) x Concentration (mL/mg)) / Concentration (mg/mL)
Plugging in the values:
Volume (mL) = (60 mg x 0.3 mL/mg) / 30 mg/mL
Volume (mL) = 18 mL / 30 mL/mL
Simplifying:
Volume (mL) = 0.6 mL
Therefore, the practical nurse (PN) should administer 0.6 mL of enoxaparin each day.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Lifting the skin is a common technique used to assess skin turgor, which is the elasticity of the skin.By letting go, the nurse can observe how quickly the skin snaps back into place, indicating good or poor elasticity.
B. recording palpated temperature might be done during a focused assessment, but it wouldn't necessarily be the next step after lifting the skin.
C. measuring indentation depth might be relevant for assessing edema (swelling), but it's not the primary focus after lifting for turgor.
D. observing swelling could be assessed visually without lifting the skin, and while it's important, assessing elasticity comes first in this scenario.
Correct Answer is B
Explanation
A. Elevated blood glucose is not typically associated with Cheyne-Stokes respirations. It might indicate diabetes or hyperglycemia but does not relate to this specific pattern of breathing.
B. Cheyne-Stokes respirations are often observed when death is imminent or in severe cases of terminal illness. This breathing pattern is characterized by cycles of increasing and decreasing respirations, often seen in end-of-life care.
C. An allergic reaction might cause respiratory symptoms, but it is not specifically associated with Cheyne-Stokes respirations. Assessing for Cheyne-Stokes would be more relevant in terminal or serious conditions rather than acute allergic reactions.
D. Cheyne-Stokes respirations are not related to strenuous exercise. After exercise, normal changes in breathing patterns occur, but Cheyne-Stokes respirations are indicative of more severe conditions.
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