Heart Diseases Flashcards
What is tachycardia?
Rapid heart rate of more than 100 bpm
What is brachycardia?
Slow heart rate of fewer than 60 bpm
What does rhythm refer to in an ECG?
Regularity of ECG waves
What is arrhythmia?
Any variation from the normal rhythm
Describe atrial flutter.
Rapid, regular sequence of atrial depolarization where the AV node responds to one out of 2 or 3 impulses
What is ventricular fibrillation?
Very serious condition with uncoordinated, chaotic contractions and erratic impulses in the ventricles
What happens if circulation isn’t restored in less than 4 minutes during ventricular fibrillation?
Brain damage sets in
What is congestive heart failure (CHF)?
Inability of the heart to adequately meet the needs of organs and tissues for oxygen and nutrients
List symptoms of left-sided heart failure.
*fluid back up into lungs
* Shortness of breath
* Cough at night
*Very tired
What are symptoms of right-sided heart failure?
*Fluid back up in veins and leaks out into tissues and organs
* spread to lungs, liver, stomach
* edema of feet, legs, ankles(lower body)
*urinate more especially at night
*trouble breathing especially when laying flat
*chest pain, feels like indigestion, skin cold and sweaty, pulse fast and irregular
How is congestive heart failure diagnosed?
Presence of edema and shortness of breath, listening for crackling sounds with a stethoscope, x-ray for enlarged heart
List three treatment options for congestive heart failure.
- Lifestyle changes (quit smoking, limit alcohol)
- Medications (diuretics-promote urination), inotropics (strengthen pumping ability), beta-blockers (slows HR, widens vessels), etc
- Surgical options: angioplasty, stenting, heart valve repair or replacement, pacemaker insertion, bypass surgery, heat transplantation
What is mitral valve disease?
Occurs when heart valves do not work properly, often leading to valvular insufficiency/regurgitation (leaky valves)
What is valvular insufficiency?
Also known as regurgitation, occurs when a valve does not close tightly
What can cause mitral valve disease?
Endocarditis, which is inflammation of the inner layer of the heart
What are chordae tendineae?
Cord-like tendons that connect papillary muscles to the tricuspid and mitral valves
List two symptoms of mitral valve disease.
- Shortness of breath
- Dizziness or weakness
- swelling of your ankles, feet or abdomen
*Rapid weight gain
*palpitations (heartbeat faster)
*discomfort in chest
What is a murmur?
A swishing sound made by blood flowing through a stenotic or leaky valve
What preventive measures can be taken for heart valve disease?
- Call doctor if symptoms of infection arise
- Maintain good dental hygiene
- Take antibiotics before surgery