EKG machine
The pads applied to a patient's skin for an EKG are called
electrodes
Which cardiac test may be ordered to get information about the mechanical function of the heart?
echocardiogram
The 12-second tracing of lead II at eh bottom of an EKG tracing is also known as
Rhythm strip
Together leads V1, V2,V3,V4, V5, and V6 may be called the ____________
Precordial (chest) Leads
Distortion that can generate inaccurate EKG tracings is known as
Artifact
What feature of electrodes allows electrical signals to be transmitted from the pad to the lead wire?
conductive gel
Which of the following is a common type of ambulatory monitor that is removed after 24- 48 hours
Holter Monitor
Lead ____is the lead most commonly used to examine a patient's heart rate and rhythm
II
Which leads make up Einthoven's triangle
Ra, La, LL
At standard gain, how high is the calibration mark on an EKG tracing
10mm
A portable EKG machine typically includes a screen, keyboard, printer, and cable that branches into __________ lead wires.
10
Which type of EKG is typically performed during the course of a stress test?
12-lead EKG
The 12 lead EKG cycles through different leads every _______ second
2.5 seconds
The augmented limb leads are
AVL, AVF, AVR
What is the effect of increasing the speed at which EKKG paper passes through the machine?
It makes the features on the tracing more spread out
How many electrodes are applied to the chest in a 12-lead EKG standard test?
6
This test evaluates cardiac symptoms under stress( caused by exercise or medication) What is this test?
Stress Test
In a rhythm strip what two electrodes are we looking at?
Ra and LL
Which standard limb leads use the La electrode
I and III
Why should an EKG machine be placed near the patient?
Because tension in the lead wires can distort the EKG tracings
Different types of electrodes are used for different types of EKG tests. Thin flat electrodes are called __________electrodes that are used for routine diagnostic screening
Resting Electrodes
A type of ambulatory monitoring that automatically alerts a healthcare professional of irregularities in the heart rate or rhythm are detected
Mobile cardiac telemetry
Limb lead reversal is one of the most common errors in electrocardiography. Which two leads are reversed to cause this error?
RA and LA
Which leads look at the left lateral wall
I, AVL, V5, V6
What is the default paper speed set at?
25 mm/sec