Chapter 53 Chapter Electrolyte Solutions Q&A (FPGEE) (1 OF 5) Sample Questions
1. A patient is receiving CaCO3 500 mg tid for prevention of osteoporosis. How many mEq of Ca is patient is receiving daily?
(Ca: 40, C 12, O3 48) = 100
- A. 10 mEq/day
- B. 30 mEq/day
- C. 20 mEq/day
- D. 8 mEq/day
Tips: mEq = (dose x valence)/ MW
mEq = (1500 mg x 2) / 100 = 30
a. Read the question. Identify and organize the given values. You are asked to solve for the milliequivalent.
b. Choose the best strategy to solve it. This problem can be accurately solved using the milliequivalent equation as shown in the Box Tips above. Memorize the valences of important elements as discussed in Misbah’s EE lecture. Make sure that the unit of the values given are in the right unit.
c. Check if you answered the question right. The right match is B.
d. (Be familiar with this equation and practice how to derive formula to solve for the weight as there will be questions when you are asked of it instead of the mEq.)