17 and 18: Acid-Base Balance + Respiratory Emphasis Flashcards
1
Q
PH for acidosis and alkalosis
A
<7.35 -> acidosis
>7.45 -> alkalosis
2
Q
Changes in pH in relation to increase in HCO3 vs increase in CO2
A
Increased HCO3 -> increased pH
Increased CO2 -> decreased pH
3
Q
What ABG changes in metabolic vs respiratory imbalances?
A
Metabolic: HCO3
Respiratory: CO2
4
Q
Respiratory control system: four parts
A
- Peripheral chemoreceptors
- Medullary center
- Respiratory muscles
- Change in CO2, O2, and pH
5
Q
History that may point to metabolic acidosis
A
Diabetic patient
6
Q
What is the point of calculating anion gap?
A
To figure out if the body is producing extraneous acids, as its difficult to test for every known acid in the body
7
Q
Reminder: equation for osmolarity of the blood
A
osmolarity = (2 Na) + (BUN/2.8) + (glucose/18)
8
Q
What is the normal osmolarity of the blood?
A
About 290 mOsmoles/L (v tightly regulated)
