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Flashcards in Fluids and Acid/Base Deck (21):
1

which 3 mechanisms are used to eliminate H+?

1. buffer systems
2. blowing off CO2
3. kidney excretion

2

what do buffer systems do?

temporarily handle strong acids by making them into weak acids

3

what is the most abundant buffer in the intracellular fluid?

protein (HgB or albumin)`

4

which buffer works as an important regulator of cytosol?

phosphate

5

where are the central chemoreceptors located?

medulla

6

where are the peripheral chemoreceptors located?

aorta
carotid

7

where is hydrogen ion secreted in the tubules?

PCT and collecting ducts

8

which renal cells are responsible for pumping H+ ions into the tubular fluid?

intercalated cells (apical surface)
-can also reabsorb hydrogen ions

9

what are normal levels of PCO2?

35-45

10

what are normal levels of bicarb?

22-26

11

which zone of the hypothalamus is responsible for thirst?

zona incerta
lateral

12

which cells are a/w ADH?

principle cells of distal DCT and collecting duct

13

which electrolytes are most abundant in the intracellular space?

K+
Mg+
HPO42-
SO42-
protein anions

14

which electrolytes are most abundant in the extracellular fluids?

Na+
Ca2+
Cl-
HCO3-

15

what is the normal sodium value?

136-148

16

what is the normal chlorine value?

95-105

17

what is the normal K level?

3.5-5.5

18

which electrolyte imbalance can cause cardiac dysrhythmia and peaked T waves?

hyperkalemia

19

what is normal calcium level?

4.5-5.5

20

what is normal phosphate level?

1.7-2.6

21

what is normal magnesium level?

1.3-2.1

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