Calculate the pulmonary shunt fraction using the following data: Pb = 757 mm Hg; hemoglobin (Hb) = 11 g/dL; FIO2 = 0.5; PaO2 = 86 mm Hg; PaCO2 = 40 mm Hg; SaO2 = 91%; = 40 mm Hg; = 71%; respiratory exchange quotient (R) = 0.8
a. 19%
b. 23%
c. 26%
d. 32%
ANS: A
You might also like to view...
Which type of plastic construction materials can be reheated, melted, and remolded into new shapes?
A. Thermoresins B. Thermosetting C. Thermoplastics D. Thermopolymers
A homeless patient is sick and is refusing transport. The patient is alert and clearly has the capacity to understand her situation and make a rational decision, but the temperature tonight will be near zero. The EMT picks up the patient and puts her on the cot. The patient continues to refuse to allow treatment and transport, despite the EMT's explanation that it will be warm in the hospital and she will be fed. The patient is transported. What could the EMT be charged with?
A) Assault B) Abandonment C) Negligence D) False imprisonment
Which of the following statements is/are true of the pulmonary lymphatic system?
1. It consists of both superficial and deep vessels. 2. It drains into the right lymphatic or thoracic duct. 3. Vessels begin as dead-end lymphatic channels in the lung. 4. With phagocytes, it defends against foreign material. a. 1, 3, and 4 only b. 2, 3, and 4 only c. 2 only d. 1, 2, 3, and 4
If periapical radiographs are available, there is no need to expose additional bitewing radiographs
Indicate whether the statement is true or false