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Kinn's Ch.49 EKG

Patient's who have _________ or difficulty breathing can be placed in _____________ position. dyspnea, semi-Fowler's
__________ and other stimulants may artificially alter the ECG. Smoking
Too much _________ (Digoxin)is toxic and may alter the ECG. digitalis
______ is a poor electrical conductor; therefore, electrolyte gel must be applied to obtain an ECG tracing. Skin
The SA node is located in the ____________ of the right atrium at the junction of the superior vena cava. upper back wall
_____________ is the resting state of the myocardial wall=baseline; __________ is the term for myocardial contraction=PQRS; repolarization is the attempt to rest after the contraction=T Polarization, Depolarization
The ___ complex shows the contraction of both ventricles and also reflects the completion of cardiac depolarization. QRS
A _ or _ lead ECG rhythm strip needs to be cut, mounted and labeled so it can be placed in the patients chart. 3,5
Lead 1 records tracings between the ________ and _________; it records the electrical activity of the lateral part of the left ventricle. right arm and left arm
Lead 2 is used to record the rhythm strip at the bottom of a multi channel ECG; it is a recording of the electrical activity between the __________ and __________. right arm and left leg
Lead 3 is a recording of the electrical activity between the ___________ and ___________-These leads are your standard leads and they are bipolar because they require two leads to read the electrical activity. left arm and left leg
The typical standard (STD) is __mm/sec and __mm/mV. 25, 10
The QRS complex shows as a ________ deflection in the V1 and V2 views, with each subsequent lead becoming more positive. Negative deflection is below the baseline, positive deflections are above the baseline. negative
An ________ device should be used when preparing a patient for a Holter monitor, but a routine ECG requires only that the area be clean and dry before electrodes are placed. abrasive
In ______________, the pathway of the electrical charge is normal but the rate or rhythm of the heartbeat is altered. sinus arrhythmia
PAC's (Premature Atrial Contractions) occur when the atrium contracts before it is supposed to in the normal cardiac cycle; this can be caused by ___________. They will appear on an ECG as an abnormally shaped or extra P wave. stimulants; They are only a concern if seen more than 6 times in one minute.
PVC's (Premature Ventricular Contractions) occur when the ventricles contract before they should for the next cardiac cycle; a QRS complex appears before a _ wave. P
A patient in ______ has no pulse. V-fib
____________ are implanted in the hospital, and local anesthesia is used for the procedure. Pacemakers
_____________ is a heart rate over 100 bpm. Tachycardia
_____________ is a heart rate less than 60 bpm. Bradycardia
An interrupted baseline typically is caused by a _____________ between the leads and the machine. disconnection
Both arm and chest electrodes are applied with the tabs pointing _____________. Leg electrodes are applied with the tabs pointing _____________. downward, upward
When a patient is in ventricular fibrillation, the person has _______. no pulse.
Small, uniform spikes in the baseline are an _______________ artifact, which is caused by electrical interference, including the bed against a wall with a power outlet. AC interference
A ______________________ usually is caused by slight movement by the patient during the tracing or poor electrode attachment, on the ECG it will shoe the stylus gradually shifting away from the center of the paper. wandering baseline
The most common cause of ______________ artifacts are patient discomfort, apprehension, movement, or talking or a condition that causes uncontrollable body tremors. somatic tremor; On the ECG, it will show jagged peaks of irregular height and spacing with a shifting baseline.
A ________ monitor provides a continuous 24-hour recording of cardiac activity, the patient will be asked to keep a _______________ of the day that might affect the heart, e.i Getting angry, being startled, etc. Holter, diary of events
In the case of ___________, the patient has general malaise and muscle cramps. The condition may occur if diuretics are used without potassium supplementation. Hypokalemia
The most distal (far away from) portions of the electrical system of the myocardium are the _____________. Purkinje fibers
The __________ is a combination of all of the electric events that occur in the heart during a single heartbeat. cardiac cycle
__________ is the relaxation phase of the heart, during which the chambers refill with blood. Diastole
_________ is the contraction of the heart, during which the blood is forced out of the chambers. Systole
The SA node controls the rate of heart contraction by initiating electrical impulses _______ times a minute. 60 to 100
A normal sinus rhythm (NSR) is a regular heart rate, the electrical flow of the heart is a normal pattern, and the heart rate is _______ beats per minute. 60 to 80
The paper is _______________, and every small box measures 1 mm so every fifth line measures 5 mm on each side, also every fifth line on the ECG paper is darker than the other lines and creates a large square measuring 5 mm on each side. heat and light sensitive
The ___________ carry cardiac electrical impulses into the machine. leads and lead wires
The _________________ heart scan is a screening tool that allows physicians to see the amount of plaque in the coronary arteries by showing the calcium deposits. Calcium makes up approximately 20% of arterial plaque deposits. electron beam tomography
____________ cause the atria to continue to fire randomly and do not allow the electrical charge to be collected and passed through to the AV node which can cause an atrial flutter with a heart rate of up to 300 bpm. Ectopic atrial beats; This can be reversed with medication or cardioversion (electrical shock).
Conduction is impaired if electrodes are placed over _____ prominences. bony
The _______marks the heat-sensitive ECG paper as it passes through the machine. stylus
The patient exercises during a _____________ so that the myocardium's response to a lack of oxygen, if present, can be assessed. cardiac stress test
Created by: castro_22