There are 60 units of U-100 insulin per _ mL.
A. 6
B. 0.6
C. 60
D. 0.06
The Correct Answer and Explanation is :
Correct Answer:
B. 0.6 mL
Explanation:
To understand this, let’s break it down step by step:
- Understanding U-100 Insulin
- U-100 insulin means there are 100 units of insulin per 1 mL of solution.
- This is a standardized concentration commonly used in medicine.
- Setting Up the Ratio
- Since U-100 means 100 units per 1 mL, we can use a proportion to determine how many milliliters contain 60 units.
- The relationship can be written as:
[
100 \text{ units} = 1 \text{ mL}
]
[
60 \text{ units} = X \text{ mL}
]
- Solving for X (the unknown mL value)
- Using the unitary method:
[
X = \frac{60 \text{ units} \times 1 \text{ mL}}{100 \text{ units}}
]
[
X = \frac{60}{100} \text{ mL}
]
[
X = 0.6 \text{ mL}
]
- Final Answer Justification
- The calculation shows that 60 units of U-100 insulin is contained in 0.6 mL of solution.
- This confirms that the correct answer is B. 0.6 mL.
Why Other Options Are Incorrect:
- A. 6 mL → Too large; this would correspond to 600 units, not 60.
- C. 60 mL → Incorrect; 60 mL would contain 6000 units, far more than 60.
- D. 0.06 mL → Too small; 0.06 mL would contain only 6 units, not 60.
Thus, the correct answer is B. 0.6 mL.