Flashcards in Week 3 EKG Lead Placement Deck (31)
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1
what does an EKG do?
provides info about electrical system of the heart from 12 different views using 10 electrodes
2
what node is responsible for the automatic beating of the heart
SA node
3
what are indication for EKG? 4
diagnose abnormal conduction, arrythmias, pre-op assesments, abnormalities resulting from genetic factors
4
what are some contraindications to performing an EKG? 2
severe trauma to chest, uncooperative patient
5
what are the complications to doing and EKG?
none
6
to what extent should a patient be clothed for an EKG?
removed clothing from waste up
7
what is the standard patient position?
supine(face up on back)
8
what is the max angle the head can be for EKG
45 deg
9
what happens if a patient cannot lie flat w/ head under 45 deg?
document altered EKG position (this can impact tracing)
10
what step must you do before placing leads and after positioning the patient?
skin prep (gives best electrical conduction)
11
what is involved in skin prep?
de-fat skin with alcohol wipe and then abrade skin with gauze pad
12
if skin is oily what do you do before alcohol and gauze?
wash with soap
13
what if the chest is hairy?q
separate hair or clip them
14
if skin is diaphoretic (sweaty) what steps do you do before alcohol wipe and gauze pad to clean it?
rub with gauze pad to dry
15
to place chest electrodes you will have to ____ and use ___
palpate and use landmarks
16
what if electrodes cannot be placed accurately?
clearly document the actual location of the electrode
17
where does electrode V1 go?
4th intercostal space, right sternal border
18
V2?
4th ICS, left sternal border
19
V3?
equadistant between V2 and V4
20
V4?
5th ICS at midclavicular line
21
V5?
horizontal to V4 at the anterior axillary line
22
V6?
horizontal to V4 at the midaxillary line
23
limb electrodes should be placed...
on fleshy areas of wrists and ankles avoiding bony prominence, on the same spot on each limb
24
what are the three main problems in a EKG?
electrical interference, wandering baseline, muscle tremor
25
how do you troubleshoot electrical interference?
alter electrical activity of the room
26
what is a wandering baseline?
wave form moves up and down over course of tracing
27
what casues wandering baseline?
poor lead connection
28
what does a muscle tremor look like on an EKG?
lines close together and spiking. not as long as the electical interference
29
how do you fix muscle tremors?
quiet the movements of the patient
30
