In an introductory blood lab, if a “vial” is defined as containing 10 mL of whole blood, approximately how many vials are equivalent to 1 U.S. pint of blood (about 473 mL)?

• A. About 24 vials
• B. About 95 vials
• C. About 47 vials
• D. About 10 vials

Answer: (C)

Verified step by step guidance

1. Step 1: Identify the volume of one vial of blood. According to the problem, one vial contains 10 mL of whole blood.
2. Step 2: Identify the volume of blood in one U.S. pint. The problem states that 1 U.S. pint is approximately 473 mL.
3. Step 3: To find how many vials are equivalent to 1 U.S. pint, set up a division of the total volume by the volume per vial: \(\text{Number of vials} = \frac{\text{Volume of 1 pint}}{\text{Volume per vial}}\).
4. Step 4: Substitute the known values into the formula: \(\text{Number of vials} = \frac{473\ \text{mL}}{10\ \text{mL per vial}}\).
5. Step 5: Perform the division to find the approximate number of vials that make up 1 U.S. pint of blood.