Term
Definitions
Acidemia
Alkalemia |
|
Definition
pHarterial < 7.40
pHarterial > 7.44 |
|
|
Term
| Henderson-Hasselbalch equation |
|
Definition
| pH = pKa + log (base/acid) |
|
|
Term
| s/p RBC transfusion and ABG calculation of oxygen saturation |
|
Definition
--> misleading
<-- tranfused RBC's - low 2,3-DPG levels |
|
|
Term
| Method of choice for detecting CO poisoning |
|
Definition
Co-oximetry --> spectrophotometric device => measures absorbance of multiple wavelengths of light => oxyHgb,deoxyHgb,metHgb, COHgb
*except sulf-Hgb |
|
|
Term
|
Definition
Anion gap = [Na] - ([Cl] + [HCO3])
normal<12 |
|
|
Term
| Corrected anion gap calculation |
|
Definition
hypoalbuminemia --> mask anion gap
= [Na] - ([Cl] + [HCO3]) + 2.5(4-Albumin) |
|
|
Term
|
Definition
Osm gap = osmmeasured - (2[Na]+[Gluc]/18+BUN/2.8)
nml < 10 |
|
|
Term
Non anion gap acidosis
a/w? |
|
Definition
| hyperchloremic metabolic acidosis |
|
|
Term
Metabolic acidosis and alkalosis
pH and [HCO3] --> which direction? |
|
Definition
same direction
acidosis --> bicarb < 25mEq/L
alkalosis--> bicarb > 25mEq/L
"M=saMe" |
|
|
Term
Respiratory acidosis and alkalosis
pH and [HCO3] --> which direction? |
|
Definition
opposite direction
acidosis --> pCO2 > 44mm Hg
alkalosis --> pCO2 < 40mm Hg |
|
|
