Imaginary line parallel to the midline and passing through the midpoint of the collar bone on the anterior (front) surface of the body
Midclavicular line
The heart disorder when patient is experiencing the following symptoms angina, diaphoresis, nausea, dyspnea, pain radiating to the arm
Myocardial infarction (heart attack)
Precordial leads
What are leads V1, V2, V3, V4, V5, V6?
Also known as chest leads
P wave that shows ___ depolarization
atrial
The heart rate and P wave characteristics for sinus bradycardia?
What is <60 bpm and upright and uniform P waves?
Formed elements make up about what percentage of blood volume?
What makes up the formed elements?
What is 45%
What are erythrocytes, leukocytes, thrombocytes?
The plaque damages the inner lining of the vessel wall
What is atherosclerosis
The lead that is placed in the fifth intercostal space in the midclavicular line
V4
The wave that comes after the QRS complex and shows the ventricular repolarization
What is the T wave?
Name all of the lethal rhythms
What are idioventricular rhythm, ventricular tachycardia, venticular fibrillation, and asytole
The thin, outermost connective tissue that protects the heart
Epicardium
Cardiac Arrest
What is when a patient has total loss of heart function?
Standard height of the calibration box (measurement in small boxes)
What is 10mm high, 5mm across
Normal range for PR interval
What is 0.12-0.20 seconds?
Name the rhythm
Rate: 150-250 bpm
Rhythm pattern: Regular
P wave characteristics: Difficult or impossible to see
PR interval: Not measurable
What is supraventricular tachycardia?
Capillaries
What are very small blood vessels where oxygen and CO2 exchanges are made?
A blood clot forms in the veins forms in the veins of the legs, or sometimes pelvis or arms
What is deep vein thrombosis (DVT)?
The reference point where positive input from each of the chest electrodes come together
Wilson's central terminal
Name the rhythm
What is tachycardia sinus rhythm?
Name the rhythm
P wave absent, QRS wide and bizarre, rate: 40-100bpm
What is accelerated idioventricular rhythm?
Pathway of blood flow through the heart
Vena cava (superior and inferior) > right atrium > tricuspid valve > right ventricle > pulmonary semilunar valve > pulmonary artery > lungs > pulmonary vein> left atrium > mitral valve > left ventricle > aortic valve > aorta > body
Symptoms of cerbrovascular accident (CVA)
What is aphasia (difficulty speaking), confusion, hemiparesis (weakness in one side of the body), hemiplegia (paralysis of one side of the body), facial droop, sudden severe headache, dizziness, vision changes
The measurements of Lead I, Lead II, Lead III (identify the pole and limbs)
What is
- Lead I measures the voltage between left arm electrode (positive pole) and right arm electrode (neg pole)
- Lead II measures the voltage between the left leg electrode (positive) and the right arm electrode (negative)
- Lead III measures the voltage between the left leg electrode (positive) and left arm electrode (negative)
Name the rhythm
Rate: 100-150 bpm
Rhythm pattern: Regular
P wave characteristics: Inverted or absent; may be before, during, or after QRS
What is junctional tachycardia?
Name the rhythm
Rate: 55 bpm
Rhythm: Every third beat is early but the underlying rhythm is regular
Irregular QRS complex is early, wide, bizarre
What is premature ventricular complexes (PVCs) trigeminal with underlying sinus bradycardia?