WorksheetsNHA CCMA Study Guide - EKG
Total questions: 30
Worksheet time: 15mins
The Q, R, and S waves together represent contraction of?
Atrium and Ventricles
Ventricles
Atrium
Ventricles and P. Fibers
A medical assistant is preparing a patient for an EKG. In which of the following locations should the assistant place the V4 lead?
5th intercostal space at the anterior axillary line
5th intercostal space at the midaxillary line
Midway between V3 and V5
5th intercostal space at the midclavicular line
Which is the first group of leads to be recorded on an electrocardiogram?
Augmented leads
Leads I, II, and III
aVR, aVL, and aVF
Leads V1 thru V6
If a medical assistant is placing the electrodes on a patient that had a status post left-sided mastectomy, where should the MA place the V2 lead?
Right arm
Left Chest
Left arm
Right Chest
If a medical assistant is placing the electrodes on a patient that has a below the elbow amputation of the right arm, where would the MA place the RA lead?
Left chest
In the axillary
Right deltoid
Left deltoid
Which electrode is placed on the 4th intercostal space of the left sternal border?
V1
V2
V3
V6
When performing a 12 lead EKG on a patient, which lead is used as a ground to help decrease interference?
LA
LL
RA
RL
Which anatomical landmark is the location for the V6 lead?
Midaxillary Line
Midclavicular Line
5th intercostal space
4th intercostal space
The body’s deoxygenated blood enters the right atrium via which blood vessel?
Aorta
Inferior & Superior Vena Cava
Pulmonary artery
Pulmonary Vein
A narrowing of the valve between the left atrium and left ventricle is the narrowing of what valve?
Tricuspid Valve
Pulmonary Valve
Mitral Valve
Aortic Valve
The blood flows from the heart to the lungs via which blood vessel?
Pulmonary Artery
Pulmonary Vein
Aorta
Pulmonary Aorta
Which arteries supply blood to the heart muscle?
Coronary Veins
Coronary Vena Cava
Coronary Artieries
Coronary Node
The valve in the heart between the right atrium and right ventricle?
Tricuspid Valve
Pulmonary Valve
Mitral Valve
Aortic Valve
The natural pacemaker of the heart?
AV Node
VA Node
SA Valve
SA Node
What term describes the absence of electrical activity in the heart?
Junctional
Cardiac EKG
Asysotle
Diastyole
What term refers to an electrical event that coincides with contraction?
Polarization
Repolarization
Depolarization
Unpolartization
In the sequence of the electrical stimulation of the heart, what part of the conduction system is stimulated after the SA node?
PV Node
Bundle of His
Purkinje FIbers
AV Node
When performing a 12 lead EKG, the CCMA should explain to the patient that the machine is recording what?
Structural activity of the heart
Electrical activity of the heart
Functional zones of the heart
Valve action of the heart
A CCMA is performing a 12-lead EKG and notices the patient’s heart rate is 44 bpm. What does this heart rate reflect?
Hypertension
Hypercardia
Tachycardia
Bradycardia
What rhythm is commonly associated with a inverted P wave?
Mitral fibrilation
Ventral relaxation
Junctional
Jointional
Sweat and lotion on a patient’s skin can interfere with the signal going to the EKG machine causing what?
Wandering Baseline
Wandering QRS complex
AC Interference
Asystole
What do erratic spikes on the EKG represent?
Electrical interference
Patient shivering
Bad electrode placement
Sweat and lotion on skin
When performing an EKG someone in the room uses a mobile phone what type of interference might be noticed on the strip?
AZ Interference
AT Interference
AC Interference
AD Interference
How many electrodes do you attach to the patient for a 12 lead EKG?
9
10
11
12
In a standard EKG, how many leads make up the standard or bipolar leads?
6
10
12
3
If a patient has dextrocardia which leads require placement modification for this patient?
Standard
Unipolar
Augmented
Precordial
What is the state of cellular rest and is represented by a flatline on an EKG strip?
Somatic tremor
Repolarization
Depolarization
Polarization
A CCMA is preparing a patient who has shortness of breath for an EKG. In which position should the patient be placed.
Prone
Semi-Fowler's
Supine
Sims'
A CCMA is performing an EKG on a patient who has a heart rate of 105/min. The medical assistant should identify this finding as an indication of which of the following conditions?
Sinus rhythm
Atrial fibrillation
Bradycardia
Tachycardia
Which of the following information is true of limb leads and electrodes?
Limb leads are unipolar
Leads V! through V6 are limb leads
Limb leads are placed on the fleshy areas of the skin
The left leg lead wire serves as the ground
