1. PEA, or pulseless electrical activity, may be manifested by a(n): a. Normal EKG, normal pulse      c. Abnormal EKG, normal pulse b. Normal EKG, absent pulse      d. Abnormal EKG, absent pulse 2....

1. PEA, or pulseless electrical activity, may be manifested by a(n):

a. Normal EKG, normal pulse      c. Abnormal EKG, normal pulse

b. Normal EKG, absent pulse      d. Abnormal EKG, absent pulse

2. The function of the chordae tendineae and papillary muscles is to:

a. Prevent backflow of blood into the ventricles

b. Protect the coronary orifices when the aortic valve opens

c. Prevent backflow of blood into the atrium

d. Facilitate backflow of blood from the aorta