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 B
Explanation
Choice A rationale:
“I should take this medication with food to prevent stomach upset.” Rationale: This statement is not accurate for fluconazole. While some medications should be taken with food to reduce stomach upset, fluconazole is typically taken on an empty stomach. Taking it with food may reduce its absorption.
Choice B rationale:
“I should avoid drinking alcohol while taking this medication.” Rationale: This is the correct response. Fluconazole can interact with alcohol and may lead to increased side effects or reduced effectiveness of the medication. Therefore, it is essential to avoid alcohol while taking fluconazole.
Choice C rationale:
“I should use a barrier method of contraception while taking this medication.” Rationale: While it is generally a good practice to use barrier contraception during treatment for a fungal infection to prevent potential spread to a partner, this statement does not specifically address fluconazole's requirements or interactions.
Choice D rationale:
“I should stop taking this medication if I develop a rash.” Rationale: This statement is not entirely accurate. While it is important to monitor for skin rashes as they can be a sign of an allergic reaction, the decision to stop taking fluconazole should be made in consultation with a healthcare provider. It is not an automatic response to developing a rash.
Correct Answer is B
Explanation
The correct answer is B. "You seem quite frightened right now."
Choice A rationale:
This statement dismisses the client's feelings and may not provide the reassurance they need. It could also escalate the situation if the client feels misunderstood or ignored.
Choice B rationale:
This response acknowledges the client's emotions and validates their experience, which can help build trust and de-escalate the situation. It shows empathy and understanding, which are crucial in managing delusions.
Choice C rationale:
While this statement aims to reassure the client, it may not address their immediate emotional state. The client might not feel safe despite being told they are, so it might not be as effective in calming them down.
Choice D rationale:
This response could inadvertently reinforce the client's delusions by implying that their fears are valid and that the nurse should take action based on those delusions. It might also confuse the client further.
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