Which of the following proportioning methods makes it difficult to refill an apparatus water tank due to excessive bubbling from residual foam solution?

Prior to administering nitroglycerin to a patient with chest pain, you should:

A) elevate the patient's lower extremities. B) obtain vital signs to detect hypotension. C) inquire about an allergy to salicylates. D) auscultate the patient's breath sounds.

Plasma is the ________ portion of the blood.

A. cellular B. lipid C. protein D. fluid