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 D
Explanation
Acne is a common skin condition that often requires specialized treatment. While general skin care practices can help maintain healthy skin, the most appropriate recommendation for a 16-year-old client seeking treatment for acne is to refer them to a dermatologist.
Acne can have various underlying causes, and effective treatment often involves a tailored approach based on the individual's specific condition. Dermatologists are medical professionals specializing in skin health and are best equipped to assess and provide appropriate treatment options for acne.
Correct Answer is C
Explanation
When admitting a client with complications of left-sided heart failure, the practical nurse (PN) should prioritize assessing the client's bilateral lung sounds. Left-sided heart failure can result in the accumulation of fluid in the lungs, leading to pulmonary congestion and impaired gas exchange. By auscultating the client's lung sounds, the PN can assess for the presence of crackles, wheezes, or diminished breath sounds, which are indicative of pulmonary congestion and fluid accumulation. This assessment helps to identify the severity of the client's condition and guides further interventions and treatment.
While assessing heart sounds (option a) is important in evaluating cardiac function, assessing lung sounds takes priority as pulmonary congestion is a common manifestation of left-sided heart failure. Chest pain (option b) is a significant symptom that should be assessed promptly, but in this scenario, the focus is on assessing for signs of pulmonary congestion and impaired gas exchange. Assessing the client's mood and affect (option d) is important for a comprehensive assessment, but it is not the priority when the client is admitted with complications of left-sided heart failure.
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