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 ["A","E"]
Explanation
A. This is a client care intervention that the PN can assign to the UAP. Transporting a urine culture sample to the laboratory is a routine and non-invasive task that does not require clinical judgment or skill. The UAP should follow the standard precautions and protocols for handling and labeling the specimen.
E. This is a client care intervention that the PN can assign to the UAP. Emptying the bedside drainage unit for a client with an indwelling urinary catheter is a routine and non-invasive task that does not require clinical judgment or skill. The UAP should follow the standard precautions and protocols for emptying, measuring, and recording the urine output.
B. This is not a client care intervention that the PN can assign to the UAP. Obtaining a post-voided residual (PVR) volume is a procedure that requires clinical judgment and skill, as it involves using a bladder scanner or catheterizing the client to measure the amount of urine left in the bladder after voiding. The UAP is not trained or authorized to perform this task, and it should be done by the PN or another licensed nurse.
C.This is not a client care intervention that the PN can assign to the UAP. Teaching the client with fluid restrictions how to measure urine output is an educational activity that requires clinical judgment and skill, as it involves assessing the client's learning needs, providing clear and accurate instructions, and evaluating the client's understanding and compliance. The UAP is not trained or authorized to perform this task, and it should be done by the PN or another licensed nurse.
D.This is not a client care intervention that the PN can assign to the UAP. Irrigating an indwelling urinary catheter for a client with bladder suspension is a procedure that requires clinical judgment and skill, as it involves inserting sterile fluid into the bladder through the catheter to flush out any clots, debris, or bacteria. The UAP is not trained or authorized to perform this task, and it should be done by the PN or another licensed nurse.
Correct Answer is D
Explanation
Tramadol is an opioid analgesic that can depress the respiratory system and potentially cause respiratory depression. Therefore, it is crucial for the PN to closely monitor the client's breathing pattern, depth, and rate. Assessing for signs of shallow or slow breathing is important to detect any potential respiratory depression and take appropriate action promptly.
The other options listed are not directly related to the administration of tramadol:
A. Encouraging the client to resume normal activities after medication administration is not an appropriate intervention for a client experiencing torticollis. The focus should be on pain management, rest, and implementing measures to relieve the torticollis.
B. Observing the client for involuntary movements of the lips and tongue every day is not specifically related to tramadol. This intervention is more relevant to monitoring for tardive dyskinesia, a side effect associated with certain antipsychotic medications.
C. Performing a daily whisper test of the client's hearing to detect symptoms of ototoxicity is not necessary with tramadol. Ototoxicity refers to damage to the inner ear, often caused by specific medications, but tramadol is not known to cause ototoxic effects.
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