Find the CO using the thermodilution technique with the given parameters: inject

Question

Find the CO using the thermodilution technique with the given parameters: injectate volume = 15 ml, blood temperature before injection = 37 degree C, injectate temperature = 23 degree C, post-injection temperature of the blood = 28 degree C after 12 seconds of injecting the cold saline, calibration factor = 0.02. Suggestion: consider the graph of temperature change in the blood as a straight line from 37 degree C to 28 degree C in 12 seconds and the area under the curve approximates a right-angled triangle.

Explanation / Answer

CO = V0(Tb - T0)K/Area under graph(A)

A = (37-28)12 = 108

K = 0.02

Tb - T0 = 37 - 23 = 14

CO = 15 x 14 x 0.02/108 = 0.039 ml/s

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.