Electrolytes Flashcards
Healthy person has ___ % total body water
50 - 60
Who has more body fluid and ECF (Infant or child) and is more prone to fluid volume deficits
Infant
Women and elderly have (more / less) body water, and elderly have less muscle mass thus increased fat cells (muscle cells carry more fluid)
Less
Tell me about infants until 3 years old Metabolic rates and Urine
Higher metabolism
More urine Excretion &
Cannot concentrate Urine
Intracellular fluid ICF (Within Cell)
(4) Ions
K+
Mg+
P04 (Phosphate)
Proteins
K+
Mg+
P04
Proteins
Intra or Extracellular fluid
Intra
Extracellular fluid can be found
Between cells (INTERSTITIAL)
Within Blood Vessel-INTERVASCULAR (BLOOD PLASMA)
Types of electrolytes (4)
Na+
Ca+
Cl- (Chloride)
HC03- (bicarbonate)
Function of Fluid
Transport nutrients to and waste from cell
Transport Hormones, Enzymes, Blood platelets, & Red & White blood cells
Cellular Metabolism and Cellular Functions
Solvent for electrolytes and Non-Electrolytes
______________
______________
_______________
Maintain body temperature & Blood pressure
Digestion & Elimination
Tissue lube
Function of Fluid
Transports __________
Cellular metabolism
Acts as a _____ for electrolytes & nonelectrolytes
Maintains ___________
Digestion & Elimination
Tissue lube
Nutrients & Waste
Hormones, enzymes, blood platelets, red and white blood cells
Acts as a solvent
Maints Temp & Blood Pressure
A series of shifts and movements to achieve
Equilibrium of ______ (concentration level)
Equilibrium of ______ (pressure within fluid spaces)
Osmolarity
Pressure
Osmolarity is..
measurement of solute concentration.
It is the number of osmoles (Osm) of solute per litre (L) of solution (osmol/L or Osm/L)
_____ liquids that hold a substance in solution (water)
_____ substances dissolved in a solution (electrolytes and nonelectrolytes)
Solvents (water)
Solutes (electrolytes)
Sodium (Na) is found
(ECF or ICF)
ECF
Controls and regulates volume of body fluids / Affecting BP
Found in ECF
Sodium Na
Potassium (K) is found here
ICF
Cheif regulator of cellular enzyme activity and water content, CARDIAC
Potassium K
Metabolism of carbohydrate and protein, vital actions involving enzymes (ATP)
Magnesium Mg
Magnesium Mg is found here
ICF
Movement of Fluids and Electrolytes
(Shifting)
Fluid moves from areas with more fluid to areas of less
Osmosis
Movement of Fluids and Electrolytes
(Shifting)
Solutes move from higher concentration to lower
Diffusion
Movement of Fluids and Electrolytes
(Shifting)
Solutes move from lower concentration to higher
Active transport
Movement of Fluids and Electrolytes
(Shifting)
Forces fluid and solutes through the capillary wall
Filtration
Movement of Fluids and Electrolytes
(Shifting)
Prevents too much fluid from leaving the capillaries
Reabsorption
Hydrostatic Pressure does what…
What force makes this happen
Where does this happen in the body
Forces fluid and solutes to move out of the capillary.
Gravity
In the arterial end of the capillary
Osmotic Pressure aka Colloid aka Oncotic Pressure- Does what?
Via Osmosis, but what solute drives this action
Returns water to the capillary
Albumin (too large move through capillary)
enters your bloodstream and helps keep fluid from leaking out of your blood vessels into other tissues.
It is also carries hormones, vitamins, and enzymes throughout your body. Without it, fluid can leak out of your blood and build up in your lungs, abdomen (belly), or other parts of your body
Albumin
Plasma Colloid osmotic pressure assists in Diffusion (Reabsorption or Capillary Filtration)
Reabsorption
Hydrostatic Pressure forces this type of action (Reabsorption or Capillary Filtration)
Capillary Filtration
When hydrostatic Pressure ( Drops Lower / Exceeds) Plasma Colloid Osmotic Pressure Fluids and Solutes move from capillaries to the interstitial space.
Exceeds
When Hydrostatic Pressure (Drops Lower / Exceeds) plasma Colloid Pressure, Fluid & Solutes enter the capillaries from the interstitial fluid
Drops lower
Intravascular fluid is aka
Plasma
Hypertonic Solution, what will happen to the cell
(Water leaves cell / water goes inside cell)
Leaves cell
Hypotonic solution, what happens to the cell.
(Water leaves cell / water goes inside cell)
Water Goes inside cell
Extracellular Fluid (ECF)
Can be broken down into (2)
Interstitial Fluid (Fluid Between Cells)
Fluid in blood vessels (Plasma)
Na+
Ca+
Cl- (Chloride)
HC03- (bicarbonate)
Are the major ions where
Extracellular fluid
In the capillary ______ Pushes / Filtrates fluid or solutes
_____ pulls / reabsorbs Fluid or Solutes back into the capillary
Hydrostatic Pressure pushes out
Colloid Osmotic Pressure Pulls / Reabsorbs
Abnormalities of Hydrostatic / Colloid Osmotic Pressure
Hormones
Hydration
Electrolyte imbalance
Medication
Endocrine disorders
Affect Hydrostatic or Colloid Osmotic Pressure
Both
Kidney function
Vascular structure
Cardiac health
Affect Hydrostatic or Colloid Osmotic Pressure
Hydrostatic Pressure
Affect Hydrostatic or Colloid Osmotic Pressure
Nutrition
Colloid Osmotic Pressure
Mechanisms that maintain fluid balance
Selectively retain or eliminate electrolytes
Output of dilute urine with FBE
Renin
Which system
Kidneys
Mechanisms that maintain fluid balance
Kidney
(3)
Selectively retain or eliminate electrolytes
Output of dilute urine with FBE
Renin
Mechanisms that maintain fluid balance
Causes vasoconstriction, Na, & H²O retention
Aldosterone
Mechanisms that maintain fluid balance
Aldosterone
Causes vasoconstriction, Na, & H²O retention
ADH directly (decreases /increases) how much water is reabsorbed, and aldosterone directly (decreases / Increases) how much salt is absorbed
Both Increase
Atrial natriuretic peptide (ANP), which (decreases /increases) sodium and water excretion
Increases
Thirst
Altered in infants and elderly
Regulated by _____
Stimulated by an increase in _____ and drying of the mucous membranes
Hypothalamus
Stimulated by increase in ECF & drying of the mucous membranes
Helps regulate the BP
Triggers secretion of Aldosterone
Renin
What Hormone triggers the secretion of Aldosterone
Increase the amount of sodium they send into your bloodstream or the amount of potassium released in your urine (pee).
Aldosterone’s effect on sodium increase causes your body to retain water in your blood
Renin
Changing the _____ will cause fluid to shift between the blood vessels and the cells
Osmolarity
Water Loss
Urine, stool, gastric, wounds
Vs
Skin, Respiration
Sensible: Urine, stool, gastric, wounds
Insensible: Skin & Lunga
When osmolality (decreases/ increases) it triggers your body to make antidiuretic hormone (ADH). It’s also called arginine vasopressin (AVP). This hormone tells your kidneys to keep more water inside your blood vessels and your urine becomes more concentrated. When osmolality decreases, your body doesn’t make as much ADH.
Increases
Too much ADH and water is retained, your blood volume ( decreases / increases) and leads to symptoms like: Feeling nauseous. Headaches. DisorientationJu
Increase
Decreased serum osmolality
Increased blood volume
Decreased H2O reabsorption
Lower urine concentration
(Inhibits / Stimulates) release of ADH
Inhibits
Increased serum osmolality
Decreased blood volume
Increased reabsorption of H2O
Higher urine concentration
(Inhibits / Stimulates) release of ADH
Stimulates release of ADH
Osmolality (decreases/increases) when you are dehydrated
(decreases/ increases) when you have too much fluid in your blood.
Osmolality increaseswhen you are dehydrated
decreases when you have too much fluid in your blood.
______ is a measure of the different solutes in plasma
The serum or plasma osmolality
Low blood volume and increased serum osmolality Sensed by Hypothalamus
Sends signal to pituitary gland
Pituitary gland secrets _____ into blood stream
Causes kidneys to retain water
Water retention boost blood volume and decrease serum osmolality
ADH
Anti diuretic hormone ADH
AKA
Vasopressin
Renin Angiotensin Aldosterone System
Gets activated when…
Serves which purpose
Low BP activates
Increase BP via
Vasoconstriction & Increased Fluid Volume
Renin Angiotensin Aldosterone System
Blood flow to the glomerulus drops.
Juxtaglomerular cells secret _____ into blood stream
Renin travels to the liver and converts angiotensinogen into ____
Angiotensin I is converted in the lungs into ____
Angiotensin II travles to the adrenal glands to produce ____
Aldosterone causes kidneys to retain sodium and water
Renin
Angiotensin I
Angiotensin II
Aldosterone
____ is released when atrial pressure increases (CHF)
Atrial Natriuretic Peptide (ANP)
____ counter acts RAAS
Decreasing blood pressure
Reducing intravascular blood volume
Decreases release of Aldosterone & ADH
(Decreases / Increases) Urine excretion of sodium and water
Atrial Natriuretic Peptide
(ANP)
Increases urine excretion
Serum osmolality (concentration in blood)
285 mOsm usually correlates with a urine specific gravity of 1.025 - 1.030
Lower than 285 is associated with
Higher…
Overhydration. Too much antidiuretic hormone. Hyponatremia.
Dehydration
Serum osmolality (concentration in blood)
285 mOsm usually correlates with a urine specific gravity of 1.025 - 1.030
Lower than 285 is associated with
Higher…
Overhydration. Too much antidiuretic hormone. Hyponatremia.
Dehydration