Cardiovascular Assessment Flashcards
In the cardiac cycle we have what phases ?
A filling phase and a pumping phase.
When you listen to heartbeat you are really hearing what ?
The closing of the valves
In the heart, you have two components that make it work?
The plumbing and the electricity
What is the SA node?
A collection of specialized cells that is designed to initiate an electric impulse that starts the sequence of the mechanical action of the cardiac cycle
What is the ECG ? (also EKG)
The electrocardiogram - we can trace the electricity of the heart with the ECG. Electrical impulses slightly precede the mechanical events
If SA node fails, what is the backup pacemaker?
The AV node- but the problem is that it can’t get the rate high enough
What does the P wave in the ECG describe?
The initial impulse at the SA node
QRS wave indicates what ?
The contraction of the ventricles
T wave indicates the
recharge
The semilunar valves (the aortic and the pulmonic valve) close at the _________
T wave
When do the coronary arteries get perfused ?
During relaxation
When do you check for orthostatic hypotension ?
Complaint of dizziness Elder who has fallen Known or suspected syncope (temporary loss of consciousness caused by a loss in blood pressure) Suspected hypovolemia (low blood volume)
Other signs of poor perfusion
Skin color, skin temp, papillary refill, peripheral pulses
Can you have cardiac disease without chest pain?
Absolutely- happens all the times Elderly Diabetics Alcoholics and drug abusers Previous Mediastinal or thoracic surgery
Cardiac Landmarks
Aortic (right of the sternum, 2nd ICS), Pulmonic (left of the sternum, 2nd ICS), Tricuspid (left of the sternum, 4-5th ICS), Mitral (5th ICS, left MCL)
The left main coronary artery is also known as
the widow maker, because having a heart attack in this vessel is most often fatal
What is heart disease?
a blanket term that speaks to disorders of the heart we need to be more specific to find out the particular disorders
Subjective data: ROS & history
Chest pain Dyspnea Orthopnea Cough Fatigue Cyanosis or Pallor Edema Nocturia Past Cardiac history Past Cardiac History HTN, hypercholesterolemia, murmur, anemia Family Cardiac History Risk Factors Smoking Alcohol Exercise Nutrition Drugs OLDCART all symptoms
major risk factors for heart disease & stroke
previous cardiovascular disease diabetes/metabolic syndrome family history, especially young high blood pressure elevated cholesterol levels smoking obesity
Objective data: chest inspection and palpation
Apical impulse heaves or lifts thrills
What is a thrill?
When assessing the pulse, this is more springy and has the rhythm of a cricket. it refers to an abnormality
S1 normal heart sounds
LUBB best heard at apex with diaphragm mitral and tricuspid closing
Systolic murmurs occur between
S1 and S1 S1 M S2
Diastolic murmurs occur when
after S1 and S2 S1 S2 M
MR. PASS
Mitral Regurgitation and Pulmonic or Aortic STenosis cause Systolic Murmurs
WHat is stenosis?
Problem with valve not opening fully