Fluids and Electrolytes. Roy R. Danks, DO, FACOS. Objectives. Review commonly used intravenous fluids and their compositions Review indications for fluid adjustments Review common electrolyte derangements and how to correct them. Body Water. 50-70 % of the body is water
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Roy R. Danks, DO, FACOS
Review commonly used intravenous fluids and their compositions
Review indications for fluid adjustments
Review common electrolyte derangements and how to correct them
We store it!
It’s often low in our malnourished patients
Usually asymptomatic until <8 mEq/L
Look for neurologic signs
Use ionized Ca++ over serum Ca++ for day to day management
Calcium chloride or gluconate IV
Chronic low Ca++?: tums, OsCal, etc
Phosphate binding antacids improve Ca absorption
Add Vit D once phos is normal
Most often due to malignancy or hyperparathyroidism
Also: thiazides, mild-alkali syndrome, granulomatous dz, acute AI, hyperthyroidism, prolong immorbilization, Pagets disease
First! Check PTH
Treat: Hydrate, loop diuresis, steriods and a medicine consult
Check it just like all your electrolytes
Very often will find it to be low
Replace with 1-2 gm per day, IV
Low Mg will cause arrhythmias, so when your patient’s develop these post op….