CA-3 ITE

Question 1

What is the equation for predicted body weight?

Answer 1

Men: 50 + 2.3*(Height inches - 60)

Women: 45.5 + 2.3*(Height inches - 60)

Question 2

Describe pH stat and the risk associated with it in deep hypothermic cardiac arrest

Answer 2

In pH stat CO2 is added to maintain a constant pCO2 and pH despite cooling. This is associated with an increased embolic stroke risk 2/2 cerebral vasodilation and increased CBF.

Question 3

What two medications have active metabolites that accumulate in renal failure?

Answer 3

Morphine: M6G (respiratory depression) M3G (neuroexcitatory effects)

Meperidine: Normeperidine (neurotoxic, seizures)