I/Os - oral, IV, tubes, drains, irrigants, flushes, urine, sweat, diarrhea, vomit, wound output.
CV compensation - peripheral vasculature clamps down - sends blood to CVS - HR increases to keep BP up. Hypo tension occurs after compensation fails - FVD is too large to over come with compensatory mechanism alone.
Orthostatic hypotension - decrease in systolic blood pressure of 20 mm Hg or a decrease in diastolic blood pressure of 10 mm Hg within three minutes of standing when compared with blood pressure from the sitting or supine position.
Pulmonary congestions and edema cause SOB and crackles. Rate increases due to decreased tissue perfusion which results in hypoxia.
Neuro changes 2' to lack of cerebral perfusion - profound FVD