A patient being transported by ambulance to the hospital can have his blood pressure measured by which of the following methods?

Venous insufficiency ulcers:

A. are the least common type of leg ulcer but frequently recur. B. are the least common type of leg ulcer but rarely recur. C. are the most common type of leg ulcer but rarely recur. D. are the most common type of leg ulcer and frequently recur.

Which of the following measures should be used in assessing the adequacy of a patient's alveolar ventilation? 1. PaO2 2. Arterial pH 3. PaCO2 4. HCO3-

a. 2 and 4 only b. 1 and 3 only c. 2 and 3 only d. 1, 2, and 4 only