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Mod D Unit 3


PVC premature ventricular contraction
PAC premature atrial contraction
tid 3 x day
a.c. before meals
p.c. after meals
NPO nothing by mouth
QD every day
CCU coronary/critical care unit
CHD coronary heart disease
CHF congestive heart failure
noc night
qam every morning
qd every day
qod every other day
qh every hour
q2h every two hours
q3h every three hours
q4h every four hours
qhs every hour sleep
qid four times a day
quad four
R,rt right
SA sinoatrial
S&S, s/s signs and symptoms
stat immediately
TPR temp,pulse,resp
Tx treatment
VO,v/o verbal orders
shift on the EKG tracing from the baseline or center of the paper wandering baseline
cardiac cycle one heart beat
baseline the line that separates the various cardiac waves
ventricular tachycardia three or more consecutive premature ventricular contractions with the heart rate above 100BPM
electrocardiograph a machine that records the electrical activity of the heart
U wave small upward curve that occasionally follows a complete ECG cycle after the PQRS interval
altering current electrical interference that appears as small, uniformed spikes on an EKG tracing
arrhythmia abnormal heart rate
pacemaker a device that delivers electrical impulses to the heart when the SA node fails
stylus heated device that records the hearts activity on heat sensitive paper
premature atrial contraction condition in which an electrical impulse in the atria starts before the next expected heart beat
ischemia a condition of poor blood supply to body tissues causing a lack of O2 to be delivered to the tissues
amplifier a device on the EKG that magnifies the hearts electrical impulses so they can be recorded
Electrical stimulation of the ventricular tissue takes place in the purkinje fibers
The precordial leads include V1-V6
If the SA node does not stimulate electrical impulses in the heart, this function is usually taken over by the AV node
Electrocardiograms are usually recorded with the ECG paper moving at the speed of 25mm/second
What chest lead is locate on the 4th intercostal space left of the sternum V2
The aVR, aVL, and aVF leads are called augmented leads
The portion of the electrocardiogram (ECG) that relates to ventricular depolarization is the QRS Complex
Leads I, II, and III are called standard/bipolar
In lead I, activity of the heart is being measured from the right arm to the left arm
The standard ECG consists of how many leads 12
In the most commonly used position on the electrocardiograph, the amplitude of a correctly adjusted standardization mark is 10mm
Electrocardiograph paper is heat sensitive
When no abnormalities show during a resting ECG, the physician may order an exercise ECG, Another name for this test is stress test
Making certain that an ECG taken on one machine will compare to a tracing taken on another machine is called standardized
Discharge of electrical energy occurs during depolarization
what wave is the first wave of the cardiac cycle P wave
The augmented leads are unipolar
The most common non-medical term for a myocardial infarction heart attack
What is the term used to refer to an electrocardiogram that is within normal limits normal sinus rhythm
The QRS complex represents the contraction of the ventricles
An exercise tolerance test is also known as a cardiac stress test
Which wave represents re-polarization T wave
Interference picked up by the ECG machine is known as artifact
What is the name given to the modified myocardial cells that set the pace of the heart SA node
A device on the skin that picks up electrical impulses given off by the heart is known as a electrode
Any deviation from “normal” on the electrocardiogram (ECG) tracing originating from the patient’s heart is known as arrhythmia
What records the electrical activity of the heart EKG/ECG
The flat horizontal line that separates the various waves is known as baseline
Created by: pdeal