5 Written Questions
5 Matching Questions
- Hypertonic, can be defined as?
- Isovolemic Hypernatremia can cause Diabetes Insipidus Centrally, how?
- how is Determining volume status done?
- IVNa = sodium concentration of infusate 0.9% is how much mEq?
- if the Osmolal gap (OSM GAP) = OSM(measured) - OSM (calculated), is greater than 10 what does this indicate?
- a 154mEq
- b -Head trauma
- c -solutes outside-more water inside cells and cells shrink-brain can shrink and cause damage
- d -clinical assessment
- e -there are substances in the blood that aren't being measured, there are exogenous compounds that aren't in the equation (Mannitol=hyperosmolol diuretic, sorbitol=induce diarrhea, ethanol, methanol=blindness cheap alcohol, ethylene glycol=antifreeze poisoning)
5 Multiple Choice Questions
- -Restriction of water < 1 - 1.2 L/day
-Restrict Na+ < 1 - 2 g/day
-Improve circulating blood volume: to ↓ ADH release
- -more solutes inside cells and less outside-more water outside and cell lysis-cerebral edema
- -↓ serum Na+ concentration, ↑ measured ECF osmolality & tonicity
-Severe hyperglycemia in uncontrolled diabetes mellitus
- -true, Total amount of sodium in ECF is major determinant of size of ECFV
-Amount of Na+ in ECF (& ECFV size) determined by balance between Na+ intake and Na+ excretion by kidneys
- 1/3 TBW
5 True/False Questions
Diabetes Insipidus is defined as having what SX? → -Uvol > 3 L/day, Uosm < 250 mOsm/kg = high urine volume and low osmolality
-Response to Desmopressin determines if central or Nephrogenic
-central-yes, DI (urine volume will go down)
-nephrogenic-no, DI (urine volume remains high)-give thiazide instead!
IVNa = sodium concentration of infusate 3% is how much mEq? → 154mEq
Intracellular fluid volume (ICFV = inside cells)? → 2/3 TBW
Signs and symptoms of hypernatremia include? → -seizures, coma, permanent brain damage, respiratory arrest, brain herniation, death (severe <115)
when treating Hypovolemic Hypotonic Hyponatremia with Diuretics, what has to be considered? → -Loop diuretics: proportional loss of Na+ and water (don't become hyponatremic!)
-Thiazides: more Na+ loss than water (high chance of having a low serum Na)