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VALVE AREAS

NORMAL AND ABNL VALVE VALUES

QuestionAnswer
MVA CALCULATION 220 DIVIDED BY PRESSURE HALF TIME
SEV PS GRADIENT >75 MMHG
MOD PS GRADIENT 50-75 MMHG
MILD PS GRADIENT <50 MMHG
SEV TS VALVE AREA <2cm sq
NL TVA 7-9 cm sq
SEV AS <.75 cm sq / >75 MMHG
MOD AS .75-1.1 cm sq / 36-75 MMHG
MILD AS 1.1-1.9 cm sq / 16-36 MMHG
NL AVA 3-5 cm sq / .9-1.7 M/SEC
SEV MS <1.0 cm sq / >12 MMHG
MOD MS 1.5-1.0 cm sq / 6-12 MMHG
MILD MS 1.5-2.5 cm sq / <5 MMHG
NL MVA 4-6 cm sq
Created by: ECHOMAMA
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