Acid and Base disorders Flashcards

1
Q

What is the normal blood gas value of PCO2

A

40 mmHg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the normal blood gas value of HCO3 (bicarb)

A

24 mEq/L

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where is the majority of bicarb reabsorbed in the body?

A

proximal tubule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Where is the majority of H+ excretion taking place in the body?

A

distal tubule
-also where bicarb is generated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the interpretation for metabolic acidosis?

A

PCO2 should decrease by 1.25 times the fall in plasma HCO3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the primary change and compensation mechanism for metabolic acidosis

A

decreased HCO3, decreased PCO2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the primary change and compensation mechanism for metabolic alkalosis

A

increased HCO3, increased PCO2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the primary change and compensation mechanism for respiratory acidosis

A

increased PCO2, increased HCO3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the primary change and compensation mechanism for respiratory alkalosis

A

decreased PCO2, decreased HCO3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the anion gap equation?

A

Na - (Cl + HCO3)
-normal range ~10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What acid base imbalance is caused in salicylate toxicity?

A

respiratory alkalosis and metabolic acidosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How do you dose bicarbonate?

A

dose (mEq) = (0.5 L/kg x IBW) X (12 mEq/L -actual HCO3)
-give 1/3 to 1/2 the calculated dose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what are the main culprits in saline responsive alkalosis?

A

diuretic therapy, vomiting & NG suction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly