Give 200 mg of ibuprofen PO every day. Available is 125 mg/tsp. How many ml. should be given each day?
16 mL/day
8 mL/day
0.5 mL/day
1.5 mL/day
The Correct Answer is B
Step 1: Identify the ordered dose
- The physician ordered 200 mg of ibuprofen PO daily.
Step 2: Convert the available concentration
- Available: 125 mg per teaspoon (tsp).
- 1 tsp = 5 mL.
- So, 125 mg ÷ 5 mL = 25 mg per mL.
Step 3: Calculate the volume needed
- Ordered dose = 200 mg.
- Concentration = 25 mg per mL.
- Volume = 200 ÷ 25 = 8 mL.
Step 4: Match to the closest option
- Correct answer: 8 mL/day.
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Related Questions
Correct Answer is C
Explanation
Step 1: Interpret the concentration
- After reconstitution, the solution contains 250 mg per 1.5 mL.
- This means: 250 ÷ 1.5 = 166.7 mg per mL.
Step 2: Calculate the volume needed for 400 mg
- Ordered dose = 400 mg.
- Concentration = 166.7 mg per mL.
- Volume = 400 ÷ 166.7 ≈ 2.4 mL.
Correct Answer is C
Explanation
A. The anterior thigh:The anterior (front) aspect of the thigh is the location of the rectus femorismuscle. While this can be used for injections, it is distinct from the vastus lateralis.
B. The upper arm: The upper arm is the location of the deltoidmuscle, a common site for small-volume vaccines.
C. The side of the thigh:The vastus lateralis is located on the lateral (outer/side) aspect of the thigh. It is a preferred site for Intramuscular (IM) injections, especially in infants and children, because it is a large muscle mass generally free of major nerves and blood vessels.
D. The back of the hip:This describes the dorsogluteal site. This site is no longer recommended for injections due to the high risk of striking the sciatic nerve or injecting into superior gluteal artery.
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