CCRN aacn Questions answers 2024, Exams of Nursing

Download CCRN aacn Questions answers 2024 and more Exams Nursing in PDF only on Docsity! CCRN aacn Questions answers 2024 cardiac output \correct answerThe volume of blood ejected from the left side of the heart in one minute. 4-8 L/min HR x SV Cardiac Index \correct answerCO/BSA 2.5-4.3 Stroke Volume (SV) \correct answerThe amount of blood pumped out of the heart with each contraction. (Vol ejected with each beat) 60-100 Preload. Afterload Contractility Stoke Volume Index (SVI) \correct answer35-60 Preload \correct answervolume of blood in ventricles at end of diastole Pressure generated by vol of blood in ventricle at end of diastole RV: cvp right artery pressure/ RVEDVI LV: PAOP/ PAD/ LAP/ SVV-PPV-SPV CVP (central venous pressure) \correct answerA direct measurement of the blood pressure in the right atrium and vena cava. CVP reflects the amount of blood returning to the heart and the ability of the heart to pump blood from the right heart into the pulmonary system. 0-5 Optimal -10 PAOP (wedge) \correct answer6-12 Optimal 14-18 critical patient RVEDVI \correct answerfrank sterling curve dynamic pressure \correct answerSVV/POV/SPV 10-15% Frank-Starling Law \correct answerThe greater the stretch, the stronger is the heart's contraction. This increased contractility results in an increased volume of blood ejected (Increased SV) Reducing preload \correct answerDiuretics Vasodilator (think venous bed) Increasing preload \correct answerVolume Vasoconstriction of venous bed Afterload \correct answerthe amount of resistance to ejection of blood from the ventricle RV: SVR LV: PVR The higher the greater the work Increases myocardial oxygen demand Decrease contractility RV more sensitive than LV SVR (systemic vascular resistance) \correct answerBest indicator of left sided afterload Overall resistance to systolic ejection 80 x (MAP-RAP)/CO 800-1200. (Index. 1970-3900) Increased SVR \correct answerVolume infusions Peripheral vasoconstriction Low CO states Hypothermia Increases blood viscosity