QUIZ 2: FLUIDS AND ELECTROLYTES Flashcards
FUNCTIONS OF WATER
Medium for metabolic reactions within cells
Transporter for nutrients, waste products, and other substances
Lubricant
Insulator and shock absorber
Regulates and maintain body temperature
average adult weight - ____
infants - ______
older adults - ______
46 - 60% fluids
70 - 80
50%
found within the cells of the body
contains solutes such as oxygen, electrolytes and glucose
Intracellular fluid (ICF)
found outside the cells and accounts 1/3 of total body fluid
Extracellular fluid (ECF)
found within the vascular system
Intravascular fluid or plasma
surrounds the cell
Interstitial fluid
includes CSF, pericardial fluid, pancreatic, pleural, intraocular, biliary, peritoneal and synovial fluids
Transcellular fluids
are charged particles capable of conducting electricity
ELECTROLYTES
- positively charged
- Na, K, Ca, Mg
Cations
- negatively charged
- CI, bicarbonate HCO3, phosphate HPO4, sulfate SO4
• Measured in milliequivalents per Inter of water (mEq/L)
Anions
- is the movement of water across cell membranes, from the less concentrated solution to the more concentrated solution
Osmosis
- the concentration solutes in body fluids
Osmolality
- used to refer to the molality of a solution
Tonicity
- solution has the same osmolality as body fluids ex. Normal saline or 0.9% sodium chloride
Isotonic
- solutions have higher osmolality than body fluids ex. 3% NaCl
Hypertonic