Acid-Base Disorders Flashcards
1
Q
steady state PaCO2
A
40 mmHg
2
Q
normal HCO3
A
24 mEq/L
3
Q
normal anion gap
A
8-16 mEq/L
4
Q
Anion gap equation
A
AG= [Na+] - ([Cl-] + [bicarb])
5
Q
when is metabolic acidosis life threatening?
A
ph less than 6.9 (use sodium bicarb or THAM or tromethamine)
6
Q
when is metabolic alkalosis life threatening?
A
ph >7.6 (use hydrochloric acid, ammonium chloride, arginine monohydrochloride)
7
Q
when do you provide adequate oxygen in respiratory acidosis?
A
If PaO2 less than 40 and/or PaCO2 >80
8
Q
COPD pts with respiratory acidosis
A
chronic respiratory acidosis with acute worsening
PaO2 less than 50
GOAL O2 SAT OF 88-92%!!
9
Q
respiratory alkalosis considerations
A
usually in mechanically ventilated pts life threatening (ph >7.6)= consider mechanical ventilation with analgesia and sedation
