Which of the following electrocardiogram EKG waves

ATI RN

ATI RN Test Bank

Which of the following electrocardiogram (EKG) waves represents atrial depolarization?

A. R wave B. T wave C. S wave D. P wave

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

The muscular wall dividing the right and left ventricles

A. Interatrial septum B. Interventricular septum C. Coronary sulcus D. Fossa ovalis

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

The hematocrit is a measure of the percentage of whole blood occupied by

A. WBCs B. platelets C. RBCs D. plasma

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Which of the following blood cells are the main soldiers in the immune system defense of the body against microbial invaders?

A. Eosinophil B. Macrophage C. Lymphocyte D. Basophil

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Serum is

A. the same as plasma B. plasma without the clotting factors C. the same as lymph D. formed during the first step in blood clotting

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

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