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 C
Explanation
The correct answer is choice C: Instruct the UAP to lower the bed for safety.
Choice C rationale: When bathing a bedfast client, the bed should be in a flat or low position to reduce the risk of the client sliding down, falling, or experiencing discomfort or injury. By instructing the UAP to lower the bed, the PN ensures client safety during the bathing process.
Choice A rationale: Assuming care of the client immediately might be unnecessary. The PN should first address the safety concern and then determine if additional intervention is needed.
Choice B rationale: While supervising the UAP may be appropriate in certain situations, the priority in this case is to address the immediate safety concern by instructing the UAP to lower the bed. The PN can then decide if supervision or assistance is required.
Choice D rationale: Determining if the UAP would like assistance is considerate, but it is not the priority in this situation. Ensuring client safety by lowering the bed should be addressed first. The PN can then assess whether the UAP needs any help or guidance.
Correct Answer is A
Explanation
The correct answer is choice a. Ask the wife to stop and assess the client’s swallowing reflex.
Choice A rationale:
Assessing the client’s swallowing reflex is crucial because facial paralysis and inability to move one side can indicate a risk of aspiration. Ensuring the client can safely swallow before giving any fluids is a priority to prevent complications like aspiration pneumonia.
Choice B rationale:
Giving the wife a straw might seem helpful, but it does not address the underlying risk of aspiration. Without assessing the swallowing reflex, using a straw could still lead to aspiration.
Choice C rationale:
Assisting the wife in giving small sips of water without assessing the swallowing reflex first is unsafe. The client might not be able to swallow properly, increasing the risk of aspiration.
Choice D rationale:
Obtaining thickening powder is a good step for clients with swallowing difficulties, but it should be done after assessing the swallowing reflex. The priority is to first determine if the client can swallow safely.
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