Pretest Flashcards
Potassium sparing diuretics and ACE inhibitors causes what elec imbalance
Hyperkalemia
Mild hyperkalemia?
5 to 5.5
Severe hyperkalemia
> 7 meq/L
Tall, peaked t wave
Hyperkalemia
Repolarization of ventricles
U waves
Hypokalemia
Calcium administration is contraindicated with patients on
Digoxin
Ca produces cardiac membrane stabilization
Prolonged QT and ST intervals
Hypocalcemia
Shortened QT interval and widened T waves
Hypercalcemia
Prolonged QT and ST intervals and increased QRS duration
Hypermagnesemia
Narcotic use depress the _______ causing alveolar hypoventilation
Medullary respiratory center
Treatment for aspirin overdose
Gastric lavage with isotonic saline
Ff by activated charcoal
Anion gap formula
Na - (hco3 + cl)
Normal: 12 meq/L
Acidosis woulf stimulate what chemoreceptors to cause an increase ventilation which decreases PCo2
Carotid body chemoreceptors
Treatment with this diuretic causes hypokalemia
Loop diuretics - furosemide
Act by inhibiting NaK2Cl symporter in thick ascending limb of the loop of Henle
By inhibiting the transporter, loop diuretics reduce the reabsorption of NaCl and thus water, and also promote K excretion
Cause metabolic alkalosis by inducing volume depletion
Renal failure, hypoxemia, diarrhea all produce
Metabolic alka or acid?
Metabolic acidosis