Venipuncture is also known as:

Which of the following is NOT a function of the blood–brain barrier?

A) Protects the brain from "foreign invaders." B) Protects the brain from hormones and neurotransmitters in the rest of the body C) Maintains a constant environment, or homeostasis, for the brain. D) Allows water-soluble molecules to pass while defending against fat-soluble molecules.

You have just arrived by the side of a nonverbal patient with snoring respirations. The caregiver states that they were eating lunch when the patient suddenly collapsed face first onto the table. She also states that the patient has a history of a stroke, high blood pressure, and colon cancer. Your priority in caring for this patient at this time would be:

A) Rapid transfer of the patient to the cot B) Feel for a radial or carotid pulse C) Open and look into the patient's mouth D) Obtain a heart rate and blood pressure