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CPR > Body Fluid Compartments > Flashcards

Body Fluid Compartments Flashcards

1
Q

Define Isosmotic

A

no change in body fluid osmolarity

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2
Q

Define Hyperosmotic

A

Body fluid osmolarity is increased

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3
Q

Hyposmotic

A

Body fluid osmolarity is decreased

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4
Q

2/3 of the water compartment in the body is ____

A

intracellular fluid

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5
Q

____ makes of 1/3 of the water content in the body.

A

ECF

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6
Q

ECF is composed of ____ and ____

A

Interstitial Fluid

Plasma

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7
Q

What seperates ICF from ECF

A

Cell Membrane

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8
Q

What seperates Interstitial Fluid from Plasma

A

Capillary Wall

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9
Q

Water added to the body fluids always enters the ____ compartment first

A

ECF

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10
Q

Fluids always leaves the body via the ____

A

ECF

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11
Q

____ is the intermediary between cells and teh external enviroment

A

ECF

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12
Q

How can you regulate interstitial fluid?

A

Regulate Plasma

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13
Q

What is the only fluid that can be acted on diretly to control its volume and composition

A

Plasma

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14
Q

Any control mechanism that operates on ___ in effects regulate the entire ECF

A

Plasma

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15
Q

Cell have NaCl concentration equal to ____

A

0.85%

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16
Q

What are main solutes ECF:

A

1) Sodium
2) Glucose
3) Urea

17
Q

Osmolarity Equation

A

(Sodium * 2) + Glucose/18 + BUN/2.8

18
Q

Plasma Osmolality Equation

A

2 (plasma [Na+])

19
Q

Vasopressin is secreted in response to:

A

1) Angiotensin II
2) Atrial receptors in presences of low preload
3) Increased osmolality of blood
4) Sympathetic Nervous System activation

20
Q

What are two actions of Vasopressin? what does it lead to>

A

1) Blood Vessel Constriction
2) Kidneys Fluid Reabsorption
3) Increased arterial pressure

21
Q

What stimulates ANP/BNP?

A

1) ANP: Increased secretion by excessive preload of atria
2) BNP: Increased secretion by excessive preload of ventricles

22
Q

ANP Functions

A

1) Arteriolar Dilation Decreases TPR
2) Increases fluid loss - decreases preload
3) Inhibits renin - decreases both TPR and preload
4) Directly inhibits Na+ reabsorption in distal parts of nephron
5) Inhibits aldosterone secretion
6) Inhibits secretion and actions of vasopressin

23
Q

Hyponatremia: What does water movement cause?

A

Symptoms related to hypovolemia and cellular swelling

24
Q

Hypernatremia: What does water movement cause?

A

Intracellular Dehydration including shrinkage of brain cells; but there is excess ECF

25
Q

Isosmotic Volume Contraction: ECF Volume, ICF Volume, Osmolarity, Hct, Plasma Protein

A

ECF Volume: Decrease

ICF Volume: NC

Osmolarity: NC

Hct: Increase

Plasma Protein: Increase

26
Q

Hyperosmotic Volume Contraction: ECF Volume, ICF Volume, Osmolarity, Hct, Plasma Protein

A

ECF Volume: Decrease

ICF Volume: Decrease

Osmolarity: Increase

Hct: NC

Plasma Protein: Increase

27
Q

Hyposmotic Volume Contraction: ECF Volume, ICF Volume, Osmolarity, Hct, Plasma Protein

A

ECF Volume: Decrease

ICF Volume: Increase

Osmolarity: Decrease

Hct: Increase

Plasma Protein: Increase

28
Q

Isosmotic Volume Expansion: ECF Volume, ICF Volume, Osmolarity, Hct, Plasma Protein

A
  • ECF Volume: Increase
  • ICF Volume: NC
  • Osmolarity: NC
  • Hct: Decrease
  • Plasma Protein: Decrease
29
Q

Hyperosmotic Volume Expansion:ECF Volume, ICF Volume, Osmolarity, Hct, Plasma Protein

A

ECF Volume: IIncrease

ICF Volume: Decrease

Osmolarity: Increase

Hct: Decrease

Plasma Protein: Decrease

30
Q

Hyposotic Volume Expanision: ECF Volume, ICF Volume, Osmolarity, Hct, Plasma Protein

A

ECF Volume: Increase

ICF Volume: Increase

Osmolarity: Decrease

Hct: NC

Plasma Protein: Decrease

31
Q

Examples of Isosmotic volume contraction

A

diarrhea

burn

32
Q

Hyperosmotic volume contraction examples

A

Sweating

Fecer

Diabetes insipidus

33
Q

Hyposmotic Volume Contraction

A

Adrenal Insufficiency

34
Q

Isosmotic Volume Expansion

A

Infusion of isotonic NaCl

35
Q

Hyperosmotic Volume Expansion

A

High NaCl intake

36
Q

Hyposmotic volume expansion example

A

SAIDH

37
Q
A

CPR (18 decks)

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