05.07 - Na Balance (Gyalmani) - PP + Handout, No reading, Not watched Flashcards Preview

Renal > 05.07 - Na Balance (Gyalmani) - PP + Handout, No reading, Not watched > Flashcards

Flashcards in 05.07 - Na Balance (Gyalmani) - PP + Handout, No reading, Not watched Deck (35):
1

Vomitting and diarrhea are examples of loss of ___ fluid

isotonic

1

Signs of ECFV depletion

Incr HR, Decr BP, Orthostatic incr in HR or Decr in BP

2

EuvolemicHypo-osmolar Hypo-natremia is due to

Water retention due to autonomous or altered regulation of ADH release

2

Changes in TBNa are synomymous with changes in

ECFV

2

How is retained water (no change in TBNa) distributed

2/3 to ICFV and 1/3 to ECFV

2

Effect of hypotonic fluid loss on TBW, ICFV, ECFV

All decrease

3

High Pressure Sensors of Decr ECV

Carotid Sinus, Aortic Arch, JGA

4

__ of TBW and __ of BW is ECFV

1/3 TBW, 0.2 BW

5

It would take __ liters of pure H2O loss to produce same change in ECFV as 2 liter loss of isotonic fluid

6 liters

6

___ determines size of ECFV

TBNa

7

Usually Hyper-Natremia is caused by ___, rather than ____

Excess water loss, rather than by Na gain

8

How is loss of water (no change in TBNa) distributed

2/3 to ICFV and 1/3 to ECFV

9

What causes disproportionate increase in BUN relative to Creatinine

Volume depletion

10

__ of TBW and __ of BW is ICFV

2/3 TBW, 0.4 BW

11

What type of Hyponatremia does Hypothyroidism cause?

Euvolemic Hypo-osmolar

12

Main solute in concentrated urine

Urea, not Na

13

Lab test to measure ECFV

None readily available

15

Volume response depends on mechanisms that sense changes in

Effect Circulating Volume

16

What type of Hyponatremia is caused by Severe HypoKalemia

Hypo-volemic Hypo-Osmolar

18

Na and associated anions __ are major solutes of ECF

Cl and HCO3

19

What type of Hyponatremia is caused by Acute and Chronic Renal Failure

Hyper-volemic Hypo-osmolar

21

What % of TBV is in arterial compartment

15%

22

Gastric losses are rich in __ and would be associated with

HCl, Metabolic Alkalosis

23

Which is triggers homeostasis first, incr ECF osmolarity or decreased ECV

Incr in Osmolarity

23

Hyper-Natremia with Uosm less than 300 mOsm/kg is

DI (central/nephrogenic), Water diuresis

25

Intestinal fluid is rich in ___ and would result in ___

HCO3-, Normal AG Metabolic Acidosis

26

___osmotic fluid is lost with diarrhea or vomitting

Iso-osmotic

27

Hyperosmolar Hyponatremia is usually caused by

Hyperglycemia, Hypertonic Mannitol

28

ICFV change in isotonic losses/volume depletion

None

29

Isotonic losses or gains change __ but not __

ECFV, but not ICFV

31

__ of ECFV and __ of BW is PV

1/4 of ECFV, 0.05 BW

32

Change in ECFV and ICFV due to ingestion of Na

Expansion of ECFV w/ little or no change in ICFV

33

__ of ECFV and __ of BW is ISFV

3/4 of ECFV, 0.15 BW

34

Low Pressure Sensors of Decr ECV

Cardiac Atria, Pulmonary Vasculature

35

Iso-Osmolar Pseudohyponatremia is caused by

Severe hyperlipidemia, Hyperproteinemia