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Mod D Unit 3
Review
Question | Answer |
---|---|
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 |