Test 2 Flashcards
(44 cards)
Hyperkalemia causes what?
Muscle weakness and dangerous dysrhythmias
Hypocalcemia causes what?
Increases neuromuscular excitability
Hypercalcemia causes what?
Pathological fractures as ca moves from bones to blood
Hypomagnesmia causes what?
Chronic alcoholism, Neuro muscular excitability muscle twitching, cramping
Hypermagnesmia causes what?
Decreased neuromuscular excitability bradycardia, hypotension
Hypochloremia/hyperchloremia associated with what?
Alkalosis and conditions that cause a loss of hydrochloride acid–always occurs with other imbalances and has no unique s/s
D5W is what
Isotonic
.9% NS is what
Isotonic
Lactated ringers is what
Isotonic
.45% NS is what
Hypotonic
If a solution is isotonic what does that mean?
Stays in the vascular tree, ECV
Is a solution is hypotonic what does that mean?
Water moves into the cells and out of ECV
If a solution is hypertonic what does that mean?
Water moves out of the cell and into ECV, cell shrinks
Active transport does what?
Moving from area of low concentration to high concentration, requires ATP
What is diffusion?
Passive movement of electrolytes from an area of high concentration to low concentration
Osmosis is what?
Moving from an area of low concentration to high concentration, equalizes the concentration of particles on each side of a cell membrane
What is the normal pH range?
7.35-7.45
What is normal range for PaCO2
35-45
What is normal range for PaO2?
80-100
What does a PaO2 less than 60 cause?
Leads to anaerobic metabolism causing lactic acid production and metabolic acidosis
Hyperventilation causes what to happen?
PaO2 below 35, more CO2 exhaled causing alkalosis
Hypoventilation produces PaO2 above 45 as rate and respiration decrease less CO2 is exhaled cells make more and it rises
CHF
Hypoxemia can cause what
Hyperventilation leading to respiratory alkalosis
Normal range of bicarbonate is what
22 to 26