A client with multiple sclerosis (MS) is receiving interferon beta-Ib 0.1875 mg subcutaneously every other day. The nurse reconstitutes the vial by slowly injecting 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"]
To determine the correct dosage, the nurse should use the concentration of the reconstituted solution which is 0.25 mg per 1 mL. Since the prescribed dose is 0.1875 mg, the nurse needs to calculate the volume of the reconstituted solution that contains this dose. By dividing the prescribed dose (0.1875 mg) by the concentration of the solution (0.25 mg/mL), the result is the volume to administer. Therefore, the nurse should administer 0.75 mL of the reconstituted solution.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["21"]
Explanation
To calculate the flow rate for an IV infusion, you can use the formula: (Volume in mL / Time in minutes) * Drop factor (gtt/mL) = Flow rate (gtt/min). For a prescription of 1 L (which is 1000 mL) of lactated Ringer's to be infused over 12 hours (which is 720 minutes), and an IV administration set that delivers 15 gtt/mL, the calculation would be: (1000 mL / 720 minutes) * 15 gtt/mL = 20.83, which rounds to 21 gtt/min.
Correct Answer is A
Explanation
A. Notifying the healthcare provider of abdominal pain is important, as exenatide can cause gastrointestinal side effects that may require medical evaluation.
B. This statement is misleading; exenatide does have interactions with other medications that need to be monitored.
C. Exenatide should be injected within 60 minutes before meals, not 30 minutes before or after.
D. While exenatide lowers blood glucose, it does so differently than insulin, as it also promotes insulin secretion and slows gastric emptying.
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