Acidosis and Alkalosis Flashcards
(37 cards)
Fat tissue holds ______ water so obese people hold _______
less
Lower water content by weight
Fluid compartments for average 70 kg man
25 L ICF
15 L ECF (10 interstital and 5 blood)
As water passed from blood to urine _____
Water replenished from ICF
ICF higher electrolytes
Potassium, inorganic phisphate
ECF Higher electrolyters
Na, Cl, HCO3
mEq equation
mmol X Abs(charge)
Buffers consist of
Weak acid and conjugate base
Buffers can compensate
WIthin 1 pH unit of pKa of acid
3 sources of acids in adults
Non-volatile (digestive)
Organic (normal metabolism)
CO2 (from O2 use by muscles)
CO2 combines with _____ to form _____
H2O
H2CO3
Non-volatile acids quantity
Minor (50-100 mEq)
Organic acids concentration
Thousands of mmol per day
Metabolized to neutral organic compounds
Organic acid concentration of ECF
Low and at steady state
Carbon dioxide is ____
major buffering system of ECF
Acid base balance from rapid to long-term
Normal pulmonary excretion of CO2
Metabolic utilization of organic acids
Renal excretion of non-volatile acids
Acidemia vs. acidosis (same with alkalosis and alkalemia()
Acidemia - blood pH below normal range
Acidosis - process that lowers ECF pH
Metabolic acidosis/alka
Changes serum HCO3 concentrations and pH
Metabolic acid/alk response
Respiratory response moving pCO2 in same direction as HCO3 change
Respiratory acid/alk
CHanges arterial CO2 and pH
Respiratory response
Initial - Change in HCO3 by buffering
Later - Renal response changing HCO3 in same direction of pCO2
Met acid - cause and response
cause - HCO3 dec
Resp - pCO2 dec via resp
Resp acidosis cause and resp
cause - pCO2 inc
Acute - HCO3 inc via buffer
Chronic - HCO3 inc via renal
Met alkalosis - cause and response
Cause - HCO3 inc
Resp - pCO2 in via resp
Resp alkalosis - cause and response
Cause - pCO2 dec
Acute - HCO3 dec via buffer
Chronic - HCO3 dec via renal