A client with multiple sclerosis (MS) is receiving interferon beta-1b 0.1875 mg subcutaneously every other day. The nurse reconstitutes the vial by slowly injecting 1.2 mL of diluent into the interferon vial for a reconstituted solution of 0.25 mg/1 mL. How many mL should the nurse administer?
(Enter numeric value only. If rounding is required, round to the nearest hundredth.)
The Correct Answer is ["0.75"]
Calculate the volume of the reconstituted solution that contains the prescribed dose of 0.1875 mg. Since the reconstituted solution has a concentration of 0.25 mg per 1 mL, we can set up a proportion to find the answer: (0.1875 mg / X mL) = (0.25 mg / 1 mL).
Solving for X gives us X = (0.1875 mg * 1 mL) / 0.25 mg, which equals 0.75 mL.
Therefore, the nurse should administer 0.75 mL of the reconstituted solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale
A. While it is important background information, it is not directly relevant to the acute change in the client's condition (increasing confusion and agitation). Therefore, this should not be provided first in the SBAR communication.
B. Knowing the client's current medications is important for understanding any potential causes or exacerbating factors related to the sudden onset of confusion and agitation. However, this is also background information and does not immediately address the acute change in the client's condition.
C. This is the most critical piece of information to provide first in the SBAR communication. Sudden onset of increasing confusion and agitation can indicate various urgent issues such as delirium, infection, metabolic disturbances, or neurological complications. This requires immediate attention and intervention from the healthcare provider.
D. While knowing the client's healthcare power of attorney is important for ensuring appropriate decision-making if needed, it is not urgent information in the context of reporting a sudden change in the client's condition. This can be discussed later in the SBAR communication or as part of the background information if relevant to the client's care.
Correct Answer is ["3750"]
Explanation
Convert the weight to kilograms, knowing that 1 kilogram equals 2.2 pounds. The child weighs approximately 25 kilograms (55 ÷ 2.2). Then, multiply the weight in kilograms by the prescribed amount of medication, which is 150 mg/kg/day.
So, 25 kg × 150 mg/kg/day equals 3750 mg/day.
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