PR interval represents?
atrial depolarization
QT interval represents?
ventricular depolarization and repolarization
ST interval
ventricular repolarization
The QRS interval of the cardiac cycle represents:
ventricular depolarization
P wave represents
atrial depolarization
Hypokalemia S/S
-weakness-irregular pulse-hypotension-respiratory distress-muscle cramping-decreased muscle tone & hypoactive reflexes -paresthesias-mental confusion
ACE inhibitors
PRIL" Captopril, Enalapril, AfosioprilAntihypertensive. Blocks ACE in lungs from converting angiotensin I to angiotensin II (powerful vasoconstrictor). Decreases BP, Decreased Aldosterone secretions, Sodium and fluid loss. Check BP before giving (hypotension)*Orthostatic Hypotension
Infective endocarditis
inflammation of endothelium that lines heart and cardiac valves. most commonly damages mitral valve, then aortic and tricuspid valves. commonly caused by bacteria that are normally present in the body. can also occur after an invasive medical or dental procedure. symptoms: valvular dysfunction, may affect organ systems, chest pain, CHF, clubbing, meningitis, low back pain, arthralgia, arthritis
Loop Diuretics
Furosemide (Lasix)Bumetanide (Bumex)
Troponin
a globular protein complex involved in muscle contraction. It occurs with tropomyosin in the thin filaments of muscle tissue.
atrial fibrillation
rapid, random, ineffective contractions of the atriumcauses poor blood flow
Mitral stenosis
abnormal narrowing of the opening of the mitral valve