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The large blood vessel that returns unoxygenated blood from the head and neck to the right atrium is called...
superior vena cava
The coronary sinus, which opens into the right atrium, allows return from which layer of the heart?
This part of the conduction system of the heart is located at the superior portion of the inter ventricular septum and has the ability to function as a pacemaker with an intrinsic firing rate of 40-60 beats per minute.
bundle of his
This represent the time it take for electrical impulses to travel from the atria to the AV node, bundle of his, bundle branches and to the purkinje fibers.
Which is an indication of stress testing?
A. angina at rest
B. acute myocardial infarction
C. severe hypertension
D. evaluation of chest pain in a patient with normal baseline EKG.
Evaluation of chest pain in a patient with normal baseline EKG
This agency requires basic practices to protest any employee in the working place from different types of hazards.
This medication is usually given to all patients with angina pectoris, causes vasodilation and protects the tissues from hypoxia.
Wet floors, heavy lifting can cause falling, sprains and strain, these are all examples of which hazard?
What is a noninvasive diagnostic procedure to determine indirectly the presence of severity of coronary artery disease and the heart muscle lack of blood supply?
This type of testing is done by administering medication that cause increase in HR while hooked to an EKG monitor.
pharmacological stress testing
While the 12-lead EKG is recorded usually every _____ seconds during exercise and every _______in the recovery period post exercise.
These are instructions given by individuals specifying what actions should be taken for their health in the event that they are no longer capable to make the proper decisions due to an illness or incapacitating condition
The most appropriate initial w/s for defibrillating ventricular fibrillation in an adult is...
In the prehospital field we administer IV fluid to a cardiac patients in order to:
provide a lifeline
A sinus rhythm with cyclic variation caused by alterations in the respiratory patter is:
A sudden onset of tachycardia with a stimulus that arises above the AV node refers to a
Most atrial fibrillation waves are not followed by a QRS complex because the....
AV junction is unable to conduct all the excitations impulses
When the EKG shows no relationship between the P wave and the QRS complex you should suspect...
third degree block
signs and symptoms that may be observed in a patient with necrotic heart tissue could be...
-congestive heart failure
The function of the chordae tendinae and papillary muscles is to...
prevents back flow of blood into atrium
The ability of certain cardiac cells to initiate excitation impulses spontaneously is called:
If a known coronary bypass patient suffers a cardiac arrest, the health care provider should...
provide CPR in the same manner as for any other patient
The innermost lining of the heart is contiguous wuthe the visceral pericardium and is called the...
the parasympathetic nervous system is mediated by the tenth cranial nerve which runs from the brain stem to the rectum. this nerve is called?
An EKG strip illustrates a regular rhythm, a HW of 70 and QRS complies that are within normal limits. P waves are variable in configuration across the strip. This rhythm is identified as a...
wandering atrial pacemaker
a progressing PR interval until such time as that a QRs is dropped is considered to be...
second degree AV block, mobitz type 1
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