The practical nurse (PN) is preparing cefazolin 400 mg IM for a client with a gram-positive infection. The available vial is labeled, "Cefazolin 1 gram," and the instructions for reconstitution state, for IM use, add 2 mL sterile water for injection. The total volume after reconstitution is 2.5 mL.
After reconstitution, how many mL should be administered to the client?
(Enter numeric value only. If rounding is required, round to the whole number, nearest tenths/hundredth).
The Correct Answer is ["1"]
The concentration of cefazolin after reconstitution can be calculated as follows: Concentration = Total amount of drug / Total volume after reconstitution
Since the available vial contains 1 gram (1000 mg) of cefazolin and the total volume after reconstitution is 2.5 mL, we can calculate the concentration:
Concentration = 1000 mg / 2.5 mL = 400 mg/mL
Therefore, after reconstitution, the concentration of cefazolin is 400 mg/mL.
To administer a dose of 400 mg, we divide the desired dose by the concentration: Volume to administer = Desired dose / Concentration
Volume to administer = 400 mg / 400 mg/mL = 1 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is A
Explanation
Acne is a common skin condition that often requires professional evaluation and treatment by a dermatologist. While the other options may be part of a comprehensive acne management plan, they alone may not be sufficient to address the client's specific needs. The recommendation to refer the client to a dermatologist allows for a more comprehensive assessment and the implementation of appropriate long-term therapy tailored to the individual's condition. The dermatologist can prescribe medications, provide personalized skincare recommendations, and monitor the client's progress over time. This ensures that the client receives the most effective and appropriate treatment for their acne.
Correct Answer is B
Explanation
Antiplatelet medications, such as aspirin or clopidogrel, are prescribed to prevent the formation of blood clots by inhibiting platelet aggregation. These medications can increase the risk of bleeding or prolonged bleeding time. Therefore, when removing the saline lock, applying pressure over the site for several minutes helps to minimize the risk of bleeding and promote hemostasis.
A. Leaving the saline lock in place and notifying the charge nurse may not be necessary unless there are specific concerns or complications related to the client's condition.
C. Encouraging the client to drink additional oral fluids is not directly related to the discontinuation of the saline lock and the potential risk of bleeding associated with antiplatelet medication.
D. Preparing a warm pack to apply after removing the lock is not necessary for this situation. Warm packs are typically used for comfort or to promote circulation, but they are not directly related to the risk of bleeding associated with antiplatelet medication.
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