click below
click below
Normal Size Small Size show me how
Car/Pul Unit 8
SPC Cardiopulmonary Physiology Unit 8 Exam 4
Question | Answer |
---|---|
Total water % for males? | 60% |
Total water % for females? | 55% |
Total water % for newborns? | 75% |
Define Millimole (mmol)? | 1/1000 of a mole *glucose is sometimes measured in mmols/L |
Define Milliequivalent (mEq)? | 1/1000 of an equivalent *An equivalent is the amount of an ionized substance that has electrochemical binding power equal to one mole of hydrogen ions. *Electrolytes, cations, anions, and expressed in milliequivalents |
Define Milliomole (mOsm) | 1/1000 of an osmole *An osmole is one mole of osmotically active particles. *Osmostic activity of fluids such as blood & urine are expressed in milliosmoles. *Glucose & proteins exert great osmotic influence. |
Define Osmolarity? | The physiochemical property of substances in a solution which determines osmosis. Normal Serum Osmolarity: 275-300 mOsm/L |
Range of Normal Serum Osmolarity? | 275-300mOsm/L |
State 3 primary determinants of Serum Osmolarity? | 1. Sodium 2. Glucose 3. B.U.N. |
What is the action of Loop Diuretics? | a.k.a. Lasix 1. Act by inhibiting tubular reabsorption of sodium, potassium, & chloride in the LOOP OF HENLE. 2. Fast & Powerful |
What is the action of Thiazide Diuretics? | 1. Act by inhibiting tubular reabsorption of sodium, potassium, & chloride in the DISTAL TUBULE. 2. Additionally bicarbonate is reabsorbed causing metabolic alkalosis. 3. "Less potent than Loop Diuretics" |
What is the action of Osmotic Diuretics? | a.k.a. Mannitol 1. Large molecular substances that pass into the tubules through the glomerular membrane and are not reabsorbed 2. Pull a lot of fluid |
What is Aldosterone? | An adrenal hormone that increases sodium reabsorption & potassium secretion in the response to: 1. Hyponatremia 2. Hyperkalemia 3. Hypovolemia 4. Decreased C.O. |
Normal PaO2? | 80-100 mmHg |
Mild Hypoxemia? | 60-80 mmHg |
Moderate Hypoxemia? | 50-60 mmHg |
Severe Hypoxemia? | <50 mmHg |