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 A
Explanation
The practical nurse (PN) who hears adventitious breath sounds while auscultating the lungs of an older adult who is receiving an IV of 5% dextrose in water (DW) at 100 mL/hour should report the findings to the charge nurse.
Adventitious breath sounds can be indicative of respiratory problems such as fluid accumulation or infection in the lungs. In this case, it is important for the PN to report the findings to the charge nurse to ensure appropriate action is taken to assess and manage the client's respiratory status.
incorrect:
B- Reviewing the last balance of intake and output is important for overall assessment but may not directly address the concern of adventitious breath sounds. It can provide additional information about the client's fluid balance, but it is not the next immediate action in response to the abnormal lung sounds.
C- Slowing the DSW infusion rate to 50 mL/hour is not the most appropriate action to take based solely on the presence of adventitious breath sounds. The abnormal lung sounds may be an indication of an underlying respiratory issue that needs further evaluation and intervention.
Adjusting the infusion rate without a comprehensive assessment and appropriate medical orders could potentially overlook the underlying cause.
D- Documenting the findings and monitoring the client is necessary, but it should not be the sole action taken. Reporting the findings to the charge nurse is crucial to ensure prompt assessment and appropriate intervention.
Correct Answer is B
Explanation
Smokeless tobacco, such as chewing tobacco or snuff, still contains harmful substances, including nicotine and various chemicals. It is associated with several health risks, including an increased risk of oral, esophageal, and pancreatic cancers, as well as gum disease, tooth loss, and nicotine addiction.
Incorrect:
A. By providing this information, the nurse can help the client make an informed decision about their smoking cessation plan. It is crucial to emphasize that quitting tobacco altogether is the best approach to reduce the risk of cancer and improve overall health.
C. The nurse should not encourage the client to continue with the plan to switch to smokeless tobacco as a means of reducing the risk for cancer. Instead, the focus should be on supporting the client's efforts to quit tobacco entirely and providing appropriate resources and interventions to facilitate smoking cessation.
D. Addressing the concern about weight gain when quitting smoking is also important, but it should be done in the context of promoting healthy lifestyle changes and offering strategies to manage weight during the smoking cessation process.
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