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
Related Questions
Correct Answer is D
Explanation
When a client's family member expresses concerns about the care provided, it is essential for the nurse to gather more information and understand the specific issues raised. By asking for a description of what happened during the night, the nurse can obtain details about the perceived inadequate care. This allows the nurse to gather accurate information, assess the situation, and address any legitimate concerns.
A. Explaining that all staff are doing their best may not address the specific issues raised by the daughter and may not provide a satisfactory resolution to her concerns.
B. Telling the daughter to talk with the unit's nurse manager can be an appropriate step, but it should come after gathering information about the situation. The nurse needs to have a clear understanding of what happened before involving the nurse manager.
C. Reassuring the daughter that the mother will get better care may not address her concerns and may not provide a solution to the perceived problem. It is important to gather more information before offering reassurance or making promises.
Correct Answer is A
Explanation
The appropriate action for the practical nurse (PN) in this situation would be to ask the client if he is currently hearing voices. This step is important to assess the client's current state and gather information about his experiences. By directly asking the client about hearing voices, the PN can gain insight into the client's symptoms and determine if there is a need for further intervention or support.
B. Having the unlicensed assistive personnel (UAP) escort the client to his room may not be necessary at this point, as the client may simply be engaging in self-talk or may prefer some time alone. However, if the client's behavior becomes disruptive, agitated, or poses a safety risk, involving the UAP or taking other appropriate measures may be warranted.
C. Recording the event is important for documentation purposes, but it should not be the only action taken. It is crucial to actively assess the client's well-being and address any potential concerns or needs.
D. Administering an as-needed (PRN) dose of haloperidol without further assessment or consulting the healthcare provider would be inappropriate. Medication decisions should be based on a comprehensive evaluation of the client's symptoms and the healthcare provider's recommendations.
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