Exam 2 (Electrolytes, Acid-Base) Flashcards Preview

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Flashcards in Exam 2 (Electrolytes, Acid-Base) Deck (56)
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1

List the 4 main electrolytes:

*Sodium
*Potassium
*Chloride
*Bicarbonate

2

List the 4 'other' electrolytes:

*Calcium
*Magnesium
*Phosphorous
*Lactate

3

_____ play a key role in maintaining electrolyte balance:

Kidneys

4

Water follows ____:

Sodium

5

Na and ____ move together:

Cl

6

___ and ___ aid in buffering blood:

K and H

7

Reabsorption of water depends on ______:

osmolality

8

These are defined as positive and negative charged ions found in ECF and ICF:

electrolytes

9

_____are negatively charged:

Anion

10

_____are positively charged:

Cations

11

What is the main cation in ECF:

Na

12

Na is exchanged for H here:

in renal tubules

13

This makes up 90% of all ECF cations:

Na

14

Variations in sodium levels can cause ____ and _____:

altered mental state
seizures

15

Hyponatremia is confirmed by ______ osmolality:

decreased

16

In hyponatremia, what two hormones will be released and why:

*aldosterone: kidney will reatin Na
*ADH: Kidney will conserve H20

17

In hypernatremia, what hormone is released and why:

ANP: promotes Na excretion

18

ANP would be released in this condition and why:

ANP released in hypernatremia to promote Na excretion

19

What is the major cation in ICF:

K

20

K concentration is ___x greater in the cell than out:

20 times greater

21

Only __% of total body potassium is in plasma:

2% (the rest is intracellular)

22

This electrolyte cation is important in cell metabolism and electrical activity of the body

Potassium

23

This cation has a reciprocal relationship with H+ ions, and helps maintain acid-base balance:

Potassium

24

Reference range for Na:

136 - 145 mmol/L

25

Reference range for K:

3.5 - 5.1 mmol/L

26

Is Na higher in ECF or ICF:

ECF
(K is higher in ICF)

27

This is regulated via renin-angiotensin-aldosterone and ATPase pump:

potassium

28

This is the major anion in ECF:

Cl-

29

The precise function of this ECF electrolyte is not well understood:

Cl-

30

This ECF anion helps buffer exchange of O2 and CO2 in RBC's:

Cl-