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 ["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.
Correct Answer is C
Explanation
Choice A rationale:
A bottle is generally much better than using a pacifier. This statement is not accurate. Prolonged bottle use, especially with sugary liquids like milk, can have adverse effects on a child's dental health. It can lead to an increased risk of cavities, similar to prolonged pacifier use.
Choice B rationale:
The bottle will assist in preventing thumb sucking. This statement is incorrect. While a bottle may provide comfort to a child, it does not prevent thumb sucking. Thumb sucking is a separate behavior that may also have dental implications if it persists beyond a certain age.
Choice C rationale:
Prolonged bottle use can increase the risk for cavities. This response is correct. Prolonged bottle use, especially with milk or sugary beverages, can expose the child's teeth to prolonged contact with sugars, increasing the risk of cavities. It's important for the nurse to educate the mother about the potential dental risks associated with extended bottle use.
Choice D rationale:
Using milk rather than juice helps to avoid tooth decay. While milk is generally considered a healthier choice than juice, the key issue in this scenario is the prolonged use of the bottle, regardless of its content. Prolonged bottle use with any liquid, including milk, can still increase the risk of cavities.
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