how increased right atrial pressure increases peripheral venous pressure

When you venoconstrict veins, you increase blood flow returning to the heart.

1. Central venous pressure describes pressure ina. Inferior vena cava near right atriumb. Superior vena cava right atriumc. Left atriumd. Abdominal aorta

An 8-year-old boy undergoes surgical repair of an atrial septal defect that was deemed too large to close in the cardiac catheterization lab. There are no intraoperative complications and he is transferred to the pediatric cardiac intensive care unit (PCICU) on minimal ventilatory and inotropic support. He is appropriately extubated the following day. Over the next 12 hours, the trend in his vital signs shows progressively worsening tachycardia and decreasing systolic blood pressure. The pressure reading from an indwelling central venous line is significantly higher than what it was upon his admission to the PCICU. His heart sounds are muffled, there are no murmurs present, and his neck veins appear to be distended. His peripheral pulses are 1+. A chest radiograph shows an enlarged cardiac silhouette and small bilateral pleural effusions. His vital signs are pulse 118 beats/min, respirations 30 breaths/min, blood pressure 86/68 mmHg, and central venous pressure 12 mmHg.Of the following, which is the best next step to improve this patient’s hemodynamics?

When is blood pressure in the large systemic arteries the greatest?Multiple ChoiceDuring ventricular systoleDuring atrial systoleDuring atrial diastoleDuring ventricular diastole

Systolic and diastolic pressure in systemic circulation is 120 and 70 mmHgwhere as in the pulmonary circulation these are 24 and 8 mmHgrespectively• What causes this pressure difference?