Flashcards in Acid-base interpretation: compensation Deck (15):

1

## If you have respiratory acidosis, how do the kidneys compensate?

### the kidneys secrete excess H+ and reabsorb more HCO3

2

## If you have respiratory alkalosis, how do the kidneys compensate?

### the kidneys excrete excess HCO3 and reabsorb more H+

3

## If the metabolic system is compromised, how does the body compensate?

### The respiratory tract tries to fix the pH

4

## If you have a metabolic acidosis, how does the respiratory system compensate?

### Increased ventilation to blow off more CO2

5

## If you have metabolic alkalosis, how does the respiratory system compensate?

### Decrease ventilation to retain CO2

6

##
Respiratory acidosis

-If the problem is acute?

###
For every 10 mmHg change in CO2 there will be a 1 mEq/L of HCO3

Expected [HCO3]= 24 + ((PaCO2-40)/10)

7

##
Respiratory acidosis

-If the problem is chronic?

###
For every 10 mmHg change in CO2 there will be a 3-4 mEq/L of HCO3

Expected [HCO3]= 24 + 4((PaCO2-40)/10)

8

##
Respiratory alkalosis

-equation if acute?

### Expected [HCO3]= 24-2((40-PaCO2)/10)

9

##
Respiratory alkalosis

-Equation if chronic?

### Expected [HCO3]= 24-5((40-PaCO2)/10)

10

##
Metabolic acidosis

-Equation if respiratory compensation is adequate?

### Expected [PaCO2]= (1.5[HCO3]+8) +_ 2

11

## Whenever you have a metabolic acidosis, you must?

### Calculate the anion gap (normal is less than or equal to 12)

12

## Anion gap=?

### [Na]-([Cl]+[HCO3])

13

## Mnemonic for elevated anion gap?

###
MUDPILES

Methanol

Uremia

Diabetic ketoacidosis, starvation, alcoholic ketoacidosis***

Paraldehyde

Isoniazid or iron

Lactic acidosis***

Ethylene glycol or ethanol

Salicylates***

14

##
Metabolic alkalosis

-Equation if respiratory compensation is adequate?

### deltaPaCO2=(.5 to 1) deltaHCO3

15