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).

Answer and Explanation

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

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Correct Answer is D

Explanation

This is the action that the PN should implement for a male client who has just been told he has cancer and asks to be left alone. Leaving the room after oﬀering to return later respects the client's autonomy and privacy, while also showing empathy and availability. The client may need some time and space to process the diagnosis and cope with his emotions. The PN should not force the client to talk or stay with him if he does not want to, but should also not abandon him or ignore his needs.

A. "Are you planning to obey the voices?" B. "Have you taken any hallucinogens?" C. "When did these voices begin?" D. "Do you believe the voices are real?"

Correct Answer is A

Explanation

A. "Are you planning to obey the voices?" – This question is crucial as it assesses the immediate risk of harm to the client or others. Determining if the client intends to follow commands from hallucinations provides insight into potential danger, ensuring safety is prioritized.

B. "Have you taken any hallucinogens?" – While drug use can contribute to hallucinations, asking about substance use is less urgent than assessing potential harm from the voices. Immediate safety takes precedence over exploring potential causes at this stage.

C. "When did these voices begin?" – Knowing when the symptoms started is relevant for understanding the history of the hallucinations but is secondary to determining if the client intends to act on any commands from the voices, as safety is the first priority.

D. "Do you believe the voices are real?" – This question helps assess the client’s insight into the hallucinations but is not as critical as assessing the immediate risk of harm by determining if the client plans to follow any commands from the voices.

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Naxlex Comprehensive Predictor Exams

A male client who has just been told he has cancer asks the practical nurse (PN) to leave his room so he can be alone. Which action should the PN implement?

Correct Answer is D

Explanation

A college student brings his roommate to the clinic because the roommate has been talking to someone who is not present. The student tells the practical nurse (PN) that his roommate is acting strange. Which question should the PN ask the client next?

Correct Answer is A

Explanation

The unlicensed assistive personnel (UAP) tells the practical nurse (PN) that a male client is angry because the night shift took over 2 hours to bring him the pain medication he had to request three times. Which action should the PN implement first?

A client reports experiencing numbness and tingling in the extremities. Which of the client's serum laboratory values should the practical nurse (PN) prioritize reporting to the healthcare provider?

Exhibits here Review H and P and nurse's notes. What other assessment techniques can the nurse use to identify the potential source of the client's new-onset confusion and decreased appetite? Select all that apply.

Which action should the practical nurse (PNA) prioritize for postoperative patient with a PCA (Patient- Controlled Analgesia) machine?

Immediately after log-rolling a client to a lateral position, which intervention should the practical nurse (PN) implement?

The practical nurse (PN) finds a postoperative client lying in bed with an unsecured surgical dressing as seen in the picture. After reinforcing the dressing, which follow-up assessment is most important for the PN to implement?