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. 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"]
This is the correct answer because the concentration of cefazolin after reconstitution is 1 gram/2.5 mL, which is equivalent to 400 mg/1 mL. Therefore, to administer 400 mg of cefazolin, the PN should draw up 1 mL of the reconstituted solution. This can be calculated using the formula:
Desired dose / Available dose = Volume to administer
400 mg / 1000 mg = x mL / 2.5 mL
x = (400 x 2.5) / 1000
x = 1 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["21"]
Explanation
The correct answer is 21 gtt/min,
To calculate the flow rate (in gtt/min), you can use the following formula: Flow rate (gtt/min) = (Volume to be infused in mL ÷ Time in minutes) × Drop factor (gtt/mL) In this case, the volume to be infused is 1 liter, which is equivalent to 1000 mL. The time for infusion is 12 hours, which is equivalent to 720 minutes. The drop factor is given as 15 gtt/mL. Flow rate (gtt/min) = (1000 mL ÷ 720 min) × 15 gtt/mL = (1.39 gtt/min) × 15 gtt/mL ≈ 20.83 gtt/min Rounded to the nearest whole number, the nurse should regulate the infusion at 21 gtt/min.
Correct Answer is ["A","B","C","E"]
Explanation
Choice A rationale:
Taking out dentures and placing them in a labeled cup (Choice A) is a necessary step to ensure the comfort and dignity of the deceased. It helps maintain the appearance and respect for the deceased person.
Choice B rationale:
Gently closing the eyes (Choice B) is a common practice to provide a more peaceful and natural appearance to the deceased. It also prevents the eyes from remaining partially open, which can be distressing for family members.
Choice C rationale:
Placing a small pillow under the head (Choice C) is done to maintain the natural alignment of the head and neck. This helps create a more lifelike appearance and enhances the comfort of the deceased.
Choice E rationale:
Removing resuscitation equipment from the room (Choice E) is essential for maintaining the dignity of the deceased and creating a more peaceful environment for the family. It also helps prevent any distressing reminders of the resuscitation attempt.
Choice D rationale:
Apply a body shroud (Choice D) is not a common practice in preparing the body for viewing by the family. The use of a body shroud may vary based on cultural or religious preferences, but it is not a standard procedure in many healthcare settings.
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