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 D
Explanation
Choice A rationale:
An altered level of consciousness is not a typical finding in Alzheimer's disease. This condition is characterized by cognitive decline and memory impairment, but consciousness itself is not directly affected.
Choice B rationale:
Rapid mood swings can occur in individuals with Alzheimer's disease due to the changes in brain structure and function. These mood swings are a common behavioral symptom. However, the more distinctive hallmark of Alzheimer's disease is the cognitive decline rather than mood swings.
Choice C rationale:
Excessive motor activity is not a prominent feature of Alzheimer's disease. Instead, individuals with Alzheimer's disease often experience a decline in motor skills and coordination as the disease progresses.
Choice D rationale:
Failure to recognize familiar objects is a common symptom of Alzheimer's disease. This is referred to as agnosia, where individuals may struggle to recognize familiar people, objects, or places. It results from the progressive damage to brain regions responsible for memory and sensory processing.
Correct Answer is C
Explanation
Choice A rationale:
Discuss the character of labor from endogenous vs. exogenous oxytocin. While it is important to educate the client about the difference between endogenous (naturally occurring) and exogenous (administered) oxytocin, this information may not address the client's primary concern. The client is refusing the prescribed oxytocin infusion and wants a "natural" delivery. Therefore, discussing alternative ways to support her birth plan is more pertinent.
Choice B rationale:
Ask the healthcare provider to discuss the issue with the client. Involving the healthcare provider in the discussion is a reasonable step, but it should not be the first action taken. The nurse can initiate a conversation with the client to explore her concerns and preferences before escalating the issue to the healthcare provider.
Choice C rationale:
Discuss alternative ways to support the client's birth plan. This is the correct choice because it directly addresses the client's refusal of the oxytocin infusion and desire for a "natural" delivery. Exploring alternative methods for inducing or facilitating labor in a way that aligns with the client's birth plan is essential.
Choice D rationale:
Explain the indications for induction related to post-term pregnancy. Explaining the indications for induction is important for educating the client about the medical reasons behind the prescribed treatment. However, this information may not immediately address the client's refusal of the oxytocin infusion. The nurse should first explore the client's concerns and preferences regarding her birth plan.
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