NURS 235 Exam questions and answers
(ScvO2) CENTRAL VENOUS O2 SAT NORM RANGE - ✅✅70-80%
MAP NORMAL RANGE - ✅✅70-105 mmHg
CO NORM RANGE - ✅✅4-8L/MIN
SV NORM RANGE - ✅✅60-100
CARDIAC INDEX NORM RANGE - ✅✅2.8-4.2L/MIN
SVR (systemic vascular resistance) range - ✅✅900-1400
Pulmonary Vascular Resistance (PVR) RANGE - ✅✅100-250
DECREASED PRELOAD CAUSED BY: - ✅✅HYPOVOLEMIA, VENODILATION
EX: TRAUMA, AFIB, GI BLEEDS, NITROGLYCERIN, INCREASES IN THORACIC PRESSURE IN MECHANICALLY
VENTED PTS.
CAN AFFECT BOTH L & R VENTRICLES.
INCREASED PRELOAD IN THE LEFT VENTRICLE IS CAUSED BY: - ✅✅VOLUME OVERLOAD; HEART:
MITRAL STENOSIS (NARROW);
MAP FORMULA IS - ✅✅SYS + 2(DIAS)
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3
CARDIAC OUTPUT IS THE VOLUME - ✅✅OF BLOOD EJECTED BY THE LEFT VENTRICLE EVERY MINUTE
(ScvO2) CENTRAL VENOUS O2 SAT NORM RANGE - ✅✅70-80%
MAP NORMAL RANGE - ✅✅70-105 mmHg
CO NORM RANGE - ✅✅4-8L/MIN
SV NORM RANGE - ✅✅60-100
CARDIAC INDEX NORM RANGE - ✅✅2.8-4.2L/MIN
SVR (systemic vascular resistance) range - ✅✅900-1400
Pulmonary Vascular Resistance (PVR) RANGE - ✅✅100-250
DECREASED PRELOAD CAUSED BY: - ✅✅HYPOVOLEMIA, VENODILATION
EX: TRAUMA, AFIB, GI BLEEDS, NITROGLYCERIN, INCREASES IN THORACIC PRESSURE IN MECHANICALLY
VENTED PTS.
CAN AFFECT BOTH L & R VENTRICLES.
INCREASED PRELOAD IN THE LEFT VENTRICLE IS CAUSED BY: - ✅✅VOLUME OVERLOAD; HEART:
MITRAL STENOSIS (NARROW);
MAP FORMULA IS - ✅✅SYS + 2(DIAS)
————————
3
CARDIAC OUTPUT IS THE VOLUME - ✅✅OF BLOOD EJECTED BY THE LEFT VENTRICLE EVERY MINUTE
