A patient with a gunshot wound arrived via ambulance at the ER with Hb 4g%, SaO₂ 98% on F_IO₂ 1.0 and PaO₂ of 503 mm Hg. What would her oxygen content equal?

Question

Quizplus · Accepted Answer

The oxygen content in blood is calculated using the formula: $$O_2 \text{ content} = (Hb \times 1.34 \times SaO_2) + (0.003 \times PaO_2)$$. Given Hb = 4g%, SaO_2 = 98%, and PaO_2 = 503 mm Hg, substituting these values gives: $$(4 \times 1.34 \times 0.98) + (0.003 \times 503) = 5.24 + 1.51 = 6.75$$ vol%, which rounds to 6.76 vol%, making option D correct.

A Patient with a Gunshot Wound Arrived Via Ambulance at the ER