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 ["1ml"]
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 C
Explanation
When a client reports experiencing numbness and tingling in the extremities, it is crucial for the practical nurse (PN) to prioritize reporting the client's electrolyte levels to the healthcare provider. Electrolytes are essential minerals that help maintain the balance of fluids in the body and enable proper nerve and muscle function. Imbalances in electrolyte levels can lead to neurological symptoms, including numbness and tingling.
Options a, b, and d are not the correct priorities to report in this situation:
Correct Answer is D
Explanation
- Capillary refill time is a test that measures how quickly the blood returns to the tissues after pressure is applied and released on a nailbed or a fingertip. It is an indicator of peripheral circulation and tissue perfusion.
- To perform the capillary refill test, the examiner should press firmly on the nailbed or fingertip for a few seconds, then release the pressure and observe how long it takes for the normal color to return. The normal capillary refill time is less than 2 seconds .
- In the photo, the practical nurse (PN) applies and then releases pressure to a client's fingernail. Normal nail color returns in 2 seconds, which indicates a normal capillary refill time and adequate peripheral circulation. This is a normal and expected finding that does not require any further action, except for documentation.
- Therefore, option D is the correct answer, as it reflects the appropriate and standard nursing practice of documenting any assessment findings in the client's chart. Option D also implies that the PN does not need to report, observe, or repeat anything else related to the capillary refill test, as it was done correctly and yielded normal results.
- Options A, B, and C are incorrect answers, as they do not reflect the appropriate or necessary actions for the PN to take after performing a normal capillary refill test.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today