Module 9 Electrolyte Imbalances Flashcards
Hyponatremia and Hypernatremia are refered to what?
sodium levels
signs of hyponatremia
they will usually be dehydrated due to sodium and water work together. With more severe you experience mental status changes, confusion, personality changes, weakness, nausea, vomiting.. very serious in elderly patients
signs of hypernatremia
thirst is usually the first to appear, mental status changes, seizures may also occur, muscle twitches will come above first, then muscle weakness.
Hypokalemia and Hyperkalemia
potassium balances. most common electrolyte in the ICF compartment. it is especially important for caridac muscle, skeletal muscle, and smooth muscle function. never given by IV push
signs of hypokalemia
muscle cramping, muscle fatigue. vital sings change, shallow ineffective breathing, pulse is typically weak, irregular, and thready. A major danger is irregular heartbeat which can cause cardiac arrest
signs of hyperkalemia
muscle twitches and cramps, later followed by profound muscular weakness, increased GI motility, slow heart rate, and decreased blood pressure.
hypo and hyper calcemia
calcium. a mineral that is primarily stored in bones and teeth. a small amount found in ECF. it is needed for the proper function of excitable tissues, especially cardiac muscles.
signs of hypocalcemia
Chronic is usually not diagnosed untill the patient breaks a bone, usually a hip. Acute hypo: irregular heart rate, mental status changes, hyperactive deep tendon reflexes, and increased GI motility.
two test that you can use to test for hypocalcemia
trousseaus and chvostek’s sign
hypercalcemia signs of
mild: may have no obvious sings and symptoms. acute: increased heart rate and blood pressure, skeletal muscle weakness, and decreased GI motility —> may get urinary calculi(stones)
if hypercalcemia is so severe that cardiac problems are present what may be necessary
hemodiaysis, peritoneal dialysis, ultrafiltration
magnesium works with what mineral
calcium, so if there is in imbalance of mag there is usally one in calcium
hypomag
patients with sever diarrhea, or Crohn’s disease are unable to absorb the mag
major cause of hypomag
alcoholism, which causes both a decreased intake and an an increased renal excertion of mag
magnesium sulfate is given how
IV; and placed on cardiac monitor
major cause of hypermag
is increased intake coupled with decreased renal excertion caused by real failure
signs of hypermag
usually not present untill above 4 bradycardia, hypotension, drowisness, weakness
what is an acid
a substance that releases a hydrogen ion, a common acid is HCl
what is a base
a substance that binds hydrogen, like HCO3,
what is another for base
alkali
acids are formed as end products of what?
glucose, fat, and protein metabloism. they are called fixed acids, because they do not change once they are formed.
ph scale
0-14 0-6.99 being acid and 7.01-14 being base.
what is the normal ph level
7.35-7.45
what threee mechanisms are used during control of acid-base balance.
cellular buffer, the lungs, and the kidneys
cellular buffers act as
a type of sponge to soak up extra hyrdogen ions if there are too many or release hydrogen ions if there are too many
the lungs
when the blood is to acidic the lungs blow off add. CO2 through rapid deep breathing. if the blood is to alkaline the lungs try to conserve Co2 through shallow resp.
the kindeys response
may take 24-48 hours. they regulate the amount of base that is kept in the body. if the pH lowers the kidneys will reabsorb add. HCO3
ABG’s
arterial blood gases. the blood sample that is analyzed must be from an artery rather than a vein
acidosis
blood becomes too acidic or to alkaline
respitory acidosis
resp. problems. CO2 is not adequately blown off during expiration, causing a build up of CO2 in the blood
metabolic acidosis
results from too much acid in the body, or too little HCO3 in the body. uncontrolled diabetes and renal failure are too common causes
respitory alkalosis
occurse when there is excessive loss of CO2 through hyperventillation. use paper bag
metabolic alkalosis
results from excessive ingestion of HCO3 or other bases into the body or loss of acids from the body. overuse of antacids or baking soda causes this.