Renal VIII: Acid-Base Physiology and Disturbances Flashcards
_____ chloride in the urine (____) is indicative of chloride-responsive metabolic alkalosis
Decreased (
A decrease in albumin of 1mg/dL necessitates ______tion of ____ to the AG
addition; 2.5
A negative anion gap indicates that the cause of the metabolic acidosis is ______.
extrarenal
A positive anion gap indicates that the cause of the metabolic acidosis is _____.
renal
AG must be corrected for loss of ______
albumin
Ammonia trapping is regulated by ______.
Glutaminase
Causes of metabolic alkalosis (7)
GI losses, loss of chloride rich fluids, post-hypercapnea, administration of bicarbonate or lactate ringers, hypokalemia, excess mineralocorticoids, licorice
Causes of normal anion gap metabolic acidosis (2)
GI bicarbonate loss; Renal tubular acidosis
Chloride depletion results in ____ resoprtion of bicarbonate
increased
Daily production of nonvolatile acid ___mmol
60
In acute respiratory acidosis, increase in PCO2 of 10 mmHg is compensated by a decrease in bicarbonate of ___mEq/L
1
In acute respiratory alkalosis, decrease in PCO2 of 10 mmHg is compensated by a decrease in bicarbonate of ___mEq/L
2
In bicarbonate reabsorption, what are the important cellular transporters?
Apical Na/H exchanger; basolateral Na/HCO3 cotransporter
In bicarbonate synthesis, what are the important cellular transporters?
Apical H+ ATPase; basolateral Cl/HCO3 exchanger
In chronic respiratory acidosis, increase in PCO2 of 10 mmHg is compensated by a decrease in bicarbonate of ___mEq/L
4
In chronic respiratory alkalosis, decrease in PCO2 of 10 mmHg is compensated by a decrease in bicarbonate of ___mEq/L
4
In metabolic acidosis the change in PCO2 is ___ times the change in bicarbonate
1-1.5
In metabolic alkalosis the change in PCO2 is ___ times the change in bicarbonate
0.25-1
Metabolic alkaloses can be categorized based on whether they respond to _______.
Chloride/Saline
Metabolic alkalosis can be categorized on the urine concentration of ______.
chloride
Primary hyperkalemia results in a metabolic _______.
Acidosis
Primary hypokalemia results in a metabolic _______.
Alkalosis
The urine anion gap can be used to determine whether or not the metabolic acidosis is caused by a ______ problem.
renal
Treatment of chloride responsive metabolic alkalosis
Saline
Treatment of chloride unresponsive metabolic alkalosis
Aldosterone inhibitor
Treatment of chronic metabolic acidosis
Oral bicarbonate
Urine Anion Gap =
[Na] + [K] - [Cl]
Which acid base disturbance? Decreased intracranial pressure and cardiac arrhythmias
Alkalosis
Which acid base disturbance? Headache, decreased arousal/sleepiness
Acidosis
Which acid base disturbance? Increased intracranial pressure, cardiac arrhythmias, and hypotension from peripheral vasodilation
Acidosis
Which acid base disturbance? Neurologic paresthesias
Alkalosis