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Flashcards in Fluid & Electrolytes Deck (74)
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1

Which is false?
A.the older you are, the more water you have
B.the fatter you are, the less water you have
C.BOTA
D.NOTA

A

Kids have more water

2

Differentiate content of extracellular fluid fr intracellular fluid

Extracellular - Na, Cl, HCO3-
Intracellular - K, Ca, Mg, phosphate, sulfate

3

Which is false?
A.Hydrostat pressure drives fluid into lymph vessels, from plasma
B.Osmotic pressure causes return of fluid to plasma
C.Osm pressure regulates fluid cell mvmt
D.NOTA

D

4

Which does not pass through pores of fenestrated capillaries / bet adj endothelial cells?
A.electrolytes
B.large water-sol cpd
C.lipid-sol cpd
D.plasma protein

D

Liver sinusoids sila

5

Which passes through pores of fenestrated capillaries?
A.electrolytes
B.large water-sol cpd
C.lipid-sol cpd
D.plasma protein

B

6

Which passes through channels in plasma membrane?
A.electrolytes
B.large water-sol cpd
C.lipid-sol cpd
D.plasma protein

(Pwede more than 1 answer)

A and C

7

How is osmolality measured via osmometer? (What concept)

Freezing pt depression
Vapor pressure depression

8

Most accurate measurement parameter for osmolality

24hr urine osmolality

9

Four parameters maintained in fluid-electrolyte balance

Volume
Osmolality/osmolarity
Conc of indiv ions
pH of body fluid

10

Which is false?
A.A decrease in ECF osmotic pressure due to water loss stimulates osmoreceptors @ thirst center
B.Stretch receptors send nerve impulses to inhibit thirst center once there is water gain
C.Hypothalamus - thirst center

A
Increase ang osmotic pressure ng ECF pag water loss

11

Which is false?
A. Renal tubules in charge of water reabsorption
B. Anterior pituitary releases vasopressin
C. 1-2% increase in osmolality --> fourfold increase in ADH
D. Water gain decreases ECF conc

B
Posterior dapat

12

Which does not affect blood volume?
A.atrial natriuretic peptide
B.volume receptor
C.GFR
D.NOTA

D

13

False about tonicity
A. Measure of osmotic pressure gradient of two solutions sep by semiperm membrane
B. Commonly used in describing response of cells immersed in an ext solution
C. Influenced by all solute

C
Influenced only by solutes that cannot cross the membrane as these only exert osmotic pressure

14

Membrane sep ICF vs ECF : (a)
Membrane sep interstitial fluid vs plasma: (b)

(A)cell membrane
(B)capillary wall

15

K+ : ICF's osmotically active solute. Regulated by: __

Na+-K+ ATPase

16

Na+: ECF osmotically active solute. Regulated by: __

Kidney sodium handling

17

Protein: plasma volume's osmotically active solute. Regulated by: __

Albumin metabolism

18

Major electrolytes na cations: enumerate

Potassium
Sodium
Magnesium
Calcium

19

Major electrolytes na anions: enumerate

Bicarbonate
Chloride
Phosphate

20

Which is true?
A. Most of metab are dep on electrolyte balance
B. Assays are done on whole blood
C. Electrolytes are distributed equally on intracellular & extracellular spaces
D. NOTA

A

B-serum, plasma
C-unequally

21

Which is false?
A. Intracellular space has high Na & low K, Cl, HCO3-
B. Intracellular space has high Na & K, low Cl, HCO3-
C. Extracellular space has high Cl, HCO3-, Na & low K
D. Extracellular space has low HCO3-, high Na, Cl, K

C

22

Which is false?
A. Sodium - body water distribution
B. Potassium - muscular activity
C. Chloride - blood pH
D. NOTA

C
Bicarbonate dapat

23

enumerate the three processes taking care of electrolyte control

diffusion
Active transport
Osmosis

24

Identify
Mathematic calculation of the diff bet cation and anion conc

Anion gap

25

Which condition does not cause increased anion gap?
A. Uremia
B. Diabetic ketosis
C. Alkalosis
D. Starvation

C
Acidosis dapat

26

Processes impt to plasma Na+ regulation. Enumerate

Excretion of water
Blood volume regulation
Water intake (thirst)

27

Hormones affecting sodium conc: enumerate

Aldosterone
Atrial natriuretic factor

28

The ff happen & hyponatremia except
A.SIADH
B.adrenal failure
C.diuretics
D.dehydration

D
Overhydration dapat

29

Urine Na+ >= 20 mmol/day. Water retention will be due to
A.congestive heart failure
B.liver cirrhosis
C.nephrotic syndrome
D.chronic renal failure

D
The rest are reasons when urine Na

30

Answer L if low, N if normal, H if high osmolality
A.increased Na loss
B.mannitol infusion
C.hyperlipidemia
D.multiple myeloma

A. L
B. H
C. N
D. N