QUIZ 2 POTASSIUM IMBALANCES Flashcards
Potassium Imbalances:
Hyperkalemia & Hypokalemia
The major cation in the intracellular fluid (ICF).
Potassium K+.
Normal Range potassium
: 3.5 - 5.0 mEq/L
Potassium (K+) functions
Aids in Heart & Muscle Contractility -
Participates in Sodium
Maintains osmotic pressure
Send nerve signals and regulate muscle contractions -
GI motility, kidney & lung functions
is an essential mineral and electrolyte as it’s highly reactive in water.
Potassium (K+)
Regulating your heartbeat and blood pressure
Aids in Heart & Muscle Contractility
Potassium Pump
Potassium levels often change with sodium levels. When sodium levels go up, potassium levels go down, and when sodium levels go down, potassium levels go up.
Participates in Sodium
5.1 mEq/L to 6.0 mEq/L =
mild hyperkalemia
6.1 mEq/L to 7.0 mEq/L
moderate hyperkalemia
above 7 mEq/L =
severe hyperkalemia
Signs and Symptoms: HYPERKALEMIA
MURDER
Muscle weakness/cramps
Urine, oliguria, anuria
Respiratory distress
Decrease cardiac contractility
EKG changes
Reflexes ( hyper or areflexia)
Causes : HYPERKALEMIA
MACHINE
Medications, ACE inhibitors, NSAIDs
Acidosis, metabolic & respiratory
Cellular destruction - burns, traumatic injury
Hypoaldosteronism, Hemolysis
Intake (excessive)
Nephrons (renal failure)
Excretion impaired
Treatment “C BIG K Drop”
Calcium gluconate (stabilizes cardiac membrane)
Beta-2-agonist(albuterol neb q2-4hrs), Bicarb (shift K+ to the cell)
Insulin
Glucose
removal of K+ / immediate/ to manage ESRD cases also
DIALYSIS
Treatment: Severe Hyperkalemia is treated in 3 steps:
- Calcium infusion is given to rapidly REVERSE conduction abnormalities.
- Insulin to stimulate the sodium/potassium pump, promoting INTRAcellular shift
- Hemodialysis to remove potassium