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Exam cct- Questions and Answers 100% Correct
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Exam cct- Questions and Answers 100% Correct
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Exam cct- Questions and Answers 100% Correctright ventricular hypertrophy (causes) Correct Ans--pulmonary hypertension
-mitral stenosis
-pulmonary embolism
-chronic lung disease
-congenital heart disease
right ventricular hypertrophy (leads) Correct Ans-- right axis deviation
- dominant R wave in V1 (>7mm tall or R/S ratio >1)
- dominant S wave in V5 or V6 (>7mm deep or R/S ratio <1)
-QRS duration <120ms (changes not due to rbbb)
Right Atrial Hypertrophy (causes) Correct Ans-- chronic lung disease
- tricuspid stenosis
-congenital heart disease
- primary pulmonary hypertension
-anything that increase size in cell size
Right Atrial Hypertrophy (leads) Correct Ans-- p wave is >2.5mm in the inferior leads (II,III,
avF)
->1.5mm in V1&V2
-Think 3 P's
, Exam cct- Questions and Answers 100% Correct
-Pointed, prominent, pulmonary
Left Atrial Hypertrophy (causes) Correct Ans-- mitral stenosis
- systemic hypertension
- aortic stenosis
- hypertension cardiomyopathy
Left Atrial Hypertrophy (leads) Correct Ans-Lead 2 P wave
- bifid p wave >40ms between 2 peaks
- total p wave duration >110 ms
- p mitrale
Lead V1
- Biphasic P wave w terminal negative portion >40ms duration
- Biphasic p wave w terminal negative portion >1 mm deep
left ventricular hypertrophy (causes) Correct Ans--a thickening of the wall of the heart's
main pumping chamber
Left ventricular hypertrophy ( leads) Correct Ans--most common used criteria is the
sokolov- lyon
- S wave depth in v1 + tallest R wave height in V5- V6 >35mm
, Exam cct- Questions and Answers 100% Correct
enlargement VS hypertrophy Correct Ans-enlargement is increase in chamber size
Hypertrophy is an increase in chamber wall thickness
atrial enlargement Correct Ans-p wave axis is normally +30 deg- +75deg
- if axis shifts right +75deg suggests RAE
- if axis shifts right +30deg, suggests LAE
- look at lead 2 , its a good lead to look at for atrial enlargement
LAE left atrial enlargement Correct Ans-- effects the second part of the pwave
-p wave is 2 parts, right atrial depolarization represents the first half
RAE Right Atrial Enlargement Correct Ans--effects the first part of p wave
secondary repolarization abnormalities Correct Ans-- consists of downsloping ST seg & T
wave inversion
- mostly seen in leads over hypertrophied ventricle
- formerly known as a "strain pattern"
Intrinsicoid Deflection Correct Ans-- the duration of time from the beginning of the qrs
complex to the peak of the R wave
- it is typically not measured in the precordial leads
- normal <35ms in V1, <45ms in
, Exam cct- Questions and Answers 100% Correct
- usually a sign of Ventricular Hypertrophy (usually left)
tall R waves +/- secondary repolarization abnormalities are found in ___ leads for RVH and
___ leads for LVH Correct Ans-v1-v2 RVH / I, avL,v5,v6 LV
usually deep S waves are found in ___ leads for RVH and ___ leads for LVH Correct Ans-I,
avL,v5,v6 RVH / v1, v2 LVH
axis deviation for RVH & LVH Correct Ans-rightward of +90deg RVH / leftward of -30deg
LVH
atrial abnormalities for RVH & LVH Correct Ans-RAE for RVH&LAE for LVH
conduction abnormalities for RVH & LVH Correct Ans-Rbbb(complete or not) RVH & Lbbb
(complete or not) LVH
other abnormalities for RVH&LVH Correct Ans-poor r wave progression for RVH & delayed
intrinsicoid deflection for LVH
3 types of diagnostic criteria for LVH Correct Ans-1. sokolow-lyon criteria
2. Cornell Criteria
3. Romhilt-Estes Point system
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