What vitamin is needed, along with intrinsic factor, for erythropoiesis to occur?

In EMS, the process of concept formation involves:

A) determining the validity of obtained data. B) gathering information about your patient. C) knowing which treatment algorithm to use. D) interpreting a patients signs and symptoms.

Which of the following are indications for arterial blood gas analysis according to the American Association for Respiratory Care (AARC) Clinical Practice Guideline: Blood Gas Analysis and Hemoximeter: 2001 Revision and Update? I. Assess a patient's ventilatory status. II. Assess a patient's acid-base status. III. Assess a patient's oxygenation status. IV. Monitor response to therapeutic

intervention. A) I B) I and II C) I, II, and III D) I, II, III, and IV