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1. 5-Lead ECG (Con- Right arm (RA):** White electrode below the right clavicle.
tinuous Monitor- Left arm (LA):** Black electrode below the left clavicle.
ing): Left leg (LL):** Red electrode on the left side of the abdomen.
Right leg (RL):** Green electrode on the right side of the abdomen.
Precordial (V1):** Brown electrode placed at the fourth intercostal space, just to
the right of the sternum.
Mnemonic:** "White on right, smoke (black) over fire (red), green goes to the
ground (right leg), brown is central."
2. What is cardiac the patient walks or runs on a treadmill (most common) or pedals a stationary
stress test? bicycle.
The test is stopped when the target heart rate is achieved or if the patient experi-
ences signs of myocardial ischemia.
Abnormal findings include
chest pain
ventricular arrhythmia
ST-segment depression
lack of heart rate or BP elevation with exercise
, NSG 223 MED SURG 2 exam 1
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3. 12 lead ECG -Step 1—Place limb leads (I, II, III, aVR, aVL, aVF)
placement
Right arm (RA):** White electrode below the right clavicle.
Left arm (LA):** Black electrode below the left clavicle.
Left leg (LL):** Red electrode on the left lower chest or abdomen.
Right leg (RL):** Green electrode on the right lower chest or abdomen (ground).
Proper electrode placement is essential to avoid artifacts and ensure accurate
readings
Precordial (Chest) Leads (V1-V6):**
V1 Fourth intercostal space to the right of the sternum.
v2Fourth intercostal space to the left of the sternum
v3Midway between V2 and V4.
V4 Fifth intercostal space at the midclavicular line.
V5At the anterior axillary line, horizontal to V4.
V6 At the midaxillary line, horizontal to V4 and V5.
4. What is pharma- Patients who are cognitively impaired and unable to follow directions or physically
cological stress disabled or deconditioned will not be able to achieve their target heart rate by
test exercising on a treadmill or bicycle.
must avoid xanthine derivatives (theophylline, aminophylline, caffeine) for
, NSG 223 MED SURG 2 exam 1
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24-48hrs prior (they block the effects of the vasodilating agents.)
NPO 3 hrs b4, abstain from all caffeine 24 hrs prior. Including chocolate and
caffeine free beverages ( tea)
5. What is 12 lead The number of electrodes needed for hardwire cardiac monitoring and telemetry
system ECG ? is dictated by the lead system used in the clinical setting.
Electrodes need to be securely and correctly placed on the chest wall to accurately
capture arrhythmias
6. What medica- Vasodilating agents such as
tions are use dipyridamole,
for pharmacolog- adenosine
ical stress t test- Or regadenoson given as an IV
ing? Dobutamine
used to mimic the effects of exercise by maximally dilating normal coronary arteries
and identifying stenotic arteries that cannot vasodilate. The side effects of these
agents are related to the vasodilating action and include chest pain, headache,
flushing, nausea, heart block, and dyspnea
these drugs can be reversed with IV aminophylline. Adenosine has an extremely
short half-life (less than 10 seconds), so any severe effects subside rapidly
7. Nursing interven- instructs the patient not to eat or drink anything for 6 hours prior to the study
tions for TEE
recovery period, the patient must maintain bed rest with the head of the bed