What accounts for the change in PO2 between the atmosphere and alveoli?
I. Water vapor pressure in alveolar gas
II. PCO2 is higher in alveolus than in the atmospheric gas
III. Higher percentage of N2 in alveolar gas
IV. PB is lower in the alveoli than in the atmosphere
A. I, II, and IV only
B. I and IV only
C. I and II only
D. I, II, III, and IV
Answer: C
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79.2 - 23.73 =
What will be an ideal response?
Clinic note
SUBJECTIVE: Patient is a 72-year-old female with known osteoarthritis, rheumatoid arthritis. She says she fell October 29 and landed on her right buttock and hip while missing a step. She stated that she was looked at the time by a nurse who happened to be in the area. She felt okay and got up and moved about without any problems. Last week she had the onset of aching intermittently in the right anterior thigh up to the lateral aspect of the hip with activity. When she rests, it goes away. She has no coldness of the extremity, restriction of movement from her usual baseline, or (1)________. Patient is otherwise at her baseline state of health. OBJECTIVE: Musculoskeletal: Back has full range of motion, with forward and backward bending, as well as sideward bending. Lower extremities have 5/5 muscle strength with 2/4 (2)________ reflex. Neurovascular is intact. There is no muscular tenderness at this time. Negative pelvic (3)________. Negative (4)________. No skin changes. ASSESSMENT/PLAN: Musculoskeletal pain. Rule out fracture in patient with rheumatoid arthritis and osteoarthritis. Arthrotec 50 mg b.i.d. to t.i.d. to current (5)________. Rest and warm heat. Will follow up as dictated by x-ray and otherwise on a p.r.n. basis.
Which of the following organs of the digestive system secretes acid and enzymes?
A. Esophagus B. Stomach C. Rectum D. Large intestine E. Small intestine