Week Two Flashcards
(21 cards)
Which artery carries deoxygenated blood from the heart to the lungs?
pulmonary
The P wave on an electrocardiogram represents what?
atrial depolarization
When obtaining an electrocardiogram, lead III records electrical activity between which limbs?
left arm and left leg
What speed are electrocardiograms most commonly recorded at?
25 mm/sec
Which artifact is minimized when electrodes are placed on the fleshy parts of the upper arm?
somatic interference
What indicates ventricular depolarization on an ECG?
QRS complex
Which heart rhythm is represented by an electrocardiogram that shows activity of the heart to be within acceptable limits?
sinus
What is the second wave on the electrocardiogram?
Q wave
Which device is used to reverse cardiac arrhythmias?
external defibrillator
Augmented leads are also called?
unipolar leads
What is the medical term for a falling or drooping of the heart?
cardioptosis
Which device may deliver a small amount of electrical energy to cause myocardial depolarization?
electronic pacemaker
Cardiomegaly often occurs with what condition?
congestive heart failure
The ability of a cardiac cell to receive an electrical stimulus and conduct that impulse to an adjacent cell is called?
conductivity
Irreversible brain damage can be caused by tissue anoxia lasting more than?
4 to 6 minutes
What is the most appropriate first step when a person is unconscious?
check for an open airway
What type of shock is most commonly caused by an endotoxin?
septic
When does anaphylactic shock occur?
during an allergic reaction
When administering CPR how many compressions should you do in 1 minute?
100
What is the most secure service offered by the U.S postal service?
registered mail
A summary of financial accounts showing balance due is known as?
a statement
