Safe use of vasoactive drugs and electrolytes

FRCEM EXAM QuestionsCategory: March 2017Safe use of vasoactive drugs and electrolytes
FRCEM Intermediate Staff asked 2 years ago
30 year-old-male-patient presented with chronic diarrhea severe hypokalemia 2.4 mmol/L, need 40 mmol/L KCL infusion with 1000 ml 0.9 N. S)
A. What is the rate of the infusion? (1mark)
B. What is your investigation? Why? (1mark)
C. What is the (2) complications? (1mark)

1 Answers
FRCEM Intermediate Staff answered 2 years ago
A.
10mmol/l per hour So, 40 mmol/L in 1000 ml 0.9 NSS for 4 hours – 250 ml/hour

B.
Mg++
because hypokalemia always associated with hypomagnesemia and Correction of Mg++ ease correction of K+.

C.
1-Phlebitis.
2-Arrhythmia.
3-Cardiac arrest.