2 results
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
Approach to Hypomagnesemia ... intake, Gl loss, shift ... #algorithm #differential ... diagnosis #causes #nephrology ... #magnesium #low
Preoperative Risk Evaluation

Major Pre-Op Questions:
1. Does the patient have any modifiable risk factors that could be
Preoperative Risk Evaluation ... 4 Mets = Climbing ... event, follow ACC algorithm ... Orthopedic • Low ... perioperative #Risk #Evaluation