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28 Cards in this Set

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Limb leads
6 leads which uses the leads from the patient's limbs including lead I, II, III, aVR, aVL, and aVF. Looks at the heart from the sides and from the feet, in the vertical plane shoing the viewpoints of each limb leads.
27.65
Percordial leads
Also called chest leads, anterior leads, or V leads. Includes V1 to V6. These leads look at the heart in a horizontal plane providing a picture taken from the front and the left side.
27.65
Focus of ECG Leads
Lead: II, III and aVF
Includes area of damage, coranary arterh involved, possible complications.
Area of damage: Inferior wall of Left ventricle

Coronary Artery Involved: RCA, posterior descending

Possible Complications: Hypotension, Left ventricle dysfunction
27.65
Table 27-16
Focus of ECG Leads
Lead: V1 and V2
Includes area of damage, coranary arterh involved, possible complications.
Area of damage: Septum

Coronary Artery Involved: LCA, LAD, septal

Possible Complications: Infranodal blocks and BBBs
27.65
Table 27-16
Focus of ECG Leads
Lead: V3 and V4
Includes area of damage, coranary arterh involved, possible complications.
Area of damage: Anterior wall of the left ventricle

Coronary Artery Involved: LCA, LAD, and diagonal

Possible Complications: Left ventricle dysfunction, CHF, BBBs, complete heart blocks, PVCs
27.65
Table 27-16
Focus of ECG Leads
Lead: V5, V6, I, and aVL
Includes area of damage, coranary arterh involved, possible complications.
Area of Damage: Laterial wall of the left ventricle

Coronary Artery Involved: LCA, circumflex

Possible Complications: Left ventricular dysfunction, AV nodal block in some
27.65
Table 27-16
Focus of ECG Leads
Lead: V4 R (II, IIII, and aVF)
Includes area of damage, coranary arterh involved, possible complications.
Area of Damage: Right Ventricle

Coronary Artery Involved: RCA, proximal

Possible Complications: Hypotension, supranodal and AV nodal blocks, A-Fib, and PACs
27.65
Table 27-16
Limb leads
6 leads which uses the leads from the patient's limbs including lead I, II, III, aVR, aVL, and aVF. Looks at the heart from the sides and from the feet, in the vertical plane shoing the viewpoints of each limb leads.
27.65
Percordial leads
Also called chest leads, anterior leads, or V leads. Includes V1 to V6. These leads look at the heart in a horizontal plane providing a picture taken from the front and the left side.
27.65
When a current moves towards a lead, it creates...
a positive (upright) deflection on the ECG tracing of the lead.
27.65
If the PQRST is upright in aVR than...
The leads are on wrong! Specifically the red and white leads have been switched.
27.66
contiguous
The leads look at the same general area of the heart.
27.67
Lead II is contiguous with:
lead III
27.67
Lead III is contiguous with:
leads II and aVF
27.7
Leads aVF is contiguous with:
lead III.
27.65
V1 is contiguous with:
V2.
27.68
V2 is contiguous with:
V1 and V3.
27.68
V3 is contiguous with:
V3 and V4.
27.68
V4 is contiguous with:
V3 and V5.
27.68
V5 is contiguous with:
V4 and V6.
27.68
V6 is contiguous with:
V5 and lead I.
27.68
Lead I is contiguous with:
V6 and aVL.
27.68
aVL is contiguous with:
lead I.
27.68
Ischemia
Tissue anoxia from diminished blood flow to tissue, usually caused by narrowing or occlusionof the artery.
Shows on an ECG as T-Wave inversion, and ST-segment depression with the onset of ischemia.
27.69 and 89
Injury shows as
ST-segment elevation within minutes to hours.
27.69
Infarction
Death (necrosis) of a localized area of tissue caused by the cutting off of its blood supply.
Appears as a pathological Q wave within several hours to several days.
27.69 and 89
If your patient is having an inferior AMI check
V4R as 40% of inferior AMI patients will be having a right ventricular MI. They may already be hypotensive, and this puts them at high risk for hypotensive from nitro or morphine, may require giving pt 1 to 2 L of NS before giving nitro. (follow protocol)
27.69
What is the most important question about a patient's 12-Lead EKG in prehospital?
Does this patient have ECG evidence of ischemia, injury, or infarction?
27.70