Fluid/Electrolyte/Acid-Base Balance Flashcards Preview

Amy's Nursing 50B > Fluid/Electrolyte/Acid-Base Balance > Flashcards

Flashcards in Fluid/Electrolyte/Acid-Base Balance Deck (37):
0

Normal Values: Glucose

70-110 mg/dL (fasting); >200 mg/dL (random)

1

Normal Values: Potassium (K)

3.5-5 mEq/L

2

Normal Values: Magnesium (Mg)

1.3-2.1 mEq/L

3

Normal Values: Sodium (Na)

135-145 mEq/L

4

Normal Values: Calcium (Ca)

9.0-10.5 mg/dL

5

Normal Values: Chloride (Cl)

98-106 mEq/L

6

Normal Values: Phosphorus (Pi)

3.0-4.5 mg/dL

7

What is the normal infusion rate for potassium?

5-10 mEq/hr; maximum 20 mEq/hr

8

Normal Values: Serum Osmolarity

280-300 mOsm/L

9

Normal Values: Creatinine (Cr)

0.5-1.1 mg/dL (females); 0.6-1.2 mg/dL (males)

10

Define ICF.

Intracellular fluid: fluid within cells

11

Define ECF.

Extracellular fluid: fluid outside cells, made up of intravascular fluid (liquid portion of blood), interstitial fluid (fluid between cells and outside of blood vessels) and transcellular fluid (fluid of the CNS)

12

Which electrolytes have higher concentrations in ICF?

K+, Mg+, Pi

13

Which electrolytes have higher concentrations in ECF?

Na+, Cl-, HCO3-

14

Define osmotic pressure.

Regulates movement of water and electrolytes from one compartment to another; inward-pulling force caused by particles in the fluid

15

Define hydrostatic pressure.

Regulates movement of water from one compartment to another; outward-pressing force against a surface

16

Define active transport.

Movement of ions against osmotic pressure (ex: sodium potassium pump); requires ATP

17

Define diffusion.

Movement of electrolytes or other particles from an area of higher to lower concentration

18

Define osmosis.

Movement of water from an area of higher to lower concentration

19

Which organ produces angiotensinogen?

Liver

20

Which organ releases aldosterone? What does aldosterone do?

Adrenal cortex; causes reabsorption of sodium and water

21

Normal Values: Fluid Intake

2200-2700 mL/day (total); 1100-1400 mL/day (liquids)

22

What is the best indicator of fluid loss or gain?

Weight; only 0.5 lb/day can be attributed to metabolism; 1 lb = 500 mL (1 kg = about 1 L)

23

Define sensible loss.

Fluid loss that can be seen, felt and measured (ex: urine, sweat)

24

Define insensible loss.

Fluid loss that you cannot see (ex: through skin, lungs, stool)

25

Which organ excretes carbonic acid? In which form?

Lungs; in the form of CO2 + H2O

26

Which organ excretes metabolic acids?

Kidneys

27

Normal Values: CO2

22-30 mEq/L

28

Normal Values: HCO3-

22-26 mEq/L (arterial); 24-30 mEq/L (venous)

29

Normal Values: pH

7.35-7.45

30

Normal Values: PaCO2

35-45 mm Hg

31

Normal Values: PaO2

80-100 mm Hg

32

Normal Values: O2 sat

95%-100%

33

Normal Values: Urine Output

1200-1500 mL/day

34

Which organ releases ADH? What does ADH do?

Posterior pituitary; causes renal cells to reabsorb water

35

Which organ releases ANP? What does ANP do?

The heart; inhibits ADH by increasing sodium and water loss in urine

36

Which IV solutions are isotonic?

D5W, NS (0.9% NaCl), LR