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- assess for circulation to hand via both ulnar and radial arteries.
- Pt squeezes hand in fist for 30 seconds. occlude both arteries with fingers, pt opens hand (should be blanched). release arteries, color should return in <7 seconds (positive)
- If negative, arteries are not patent, don't poke!
specific gravity of urine
the ratio of density of urine to density of water
- water =1.000
- SG = 1.002-1.03
normal phosphorous level
Central Venous Pressure (CVP)
direct measurement of the blood pressure in the right atrium and vena cava
Normal =4-11 cm H20