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:
Encouraging the client to exercise every day to eliminate bedtime wakefulness is not appropriate advice in this scenario. It oversimplifies the issue and may not address the underlying causes of the client's sleep difficulties. Additionally, excessive exercise close to bedtime may actually interfere with sleep.
Choice C rationale:
Asking the client for a description of the exercise schedule being followed is a reasonable action. It allows the nurse to gather information about the client's exercise routine and assess whether it might be contributing to the sleep difficulties. However, this alone may not fully address the client's concerns.
Choice D rationale:
Determining the amount of weight the client has lost since increasing activity is relevant to the client's overall health and progress toward weight loss goals, but it does not directly address the issue of sleep difficulties. Weight loss and improved sleep may not always have a direct cause-and-effect relationship.
Correct Answer is A
Explanation
a) Suggest an increase in fruits and vegetables is more beneficial.
In this scenario, the dentist is increasing the amount of dairy products in her diet with the aim of reducing the risk of gingivitis due to her family history of cancer. However, the practical nurse (PN) should respond by suggesting that an increase in fruits and vegetables would be more beneficial.
Fruits and vegetables are rich in essential vitamins, minerals, and antioxidants, which can help support overall oral health and reduce the risk of gingivitis. They provide a wide range of nutrients that are important for maintaining healthy gums and teeth.
While dairy products can contribute to overall dental health due to their calcium content, they should not be solely relied upon as the primary means of preventing gingivitis or reducing the risk of cancer. A well- rounded and balanced diet, including plenty of fruits and vegetables, is essential for optimal oral health.
Options b, c, and d are not directly related to the dentist's concern about gingivitis and the increased consumption of dairy products. Encouraging exercise (option b) is generally beneficial for overall health, but it does not specifically address gingivitis. Reminding the client to ensure dairy products are fortified with vitamin D (option c) is not necessary in this context, as the focus is on preventing gingivitis rather than addressing vitamin D deficiency. Providing writen information about the warning signs of cancer (option d) is not directly relevant to the dentist's current situation and concern about gingivitis.
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