The pulse that can be felt in front of your ear is the:

Correct Answer: A

Rationale: The temporal artery is located in front of the ear, where its pulse can be palpated.

Correct Answer: B

Rationale: The patient who has 'wet-cold' clinical manifestations of heart failure is perfusing inadequately and needs rapid assessment and changes in management. The other patients also should be assessed as quickly as possible but do not have indications of severe decreases in tissue perfusion.

Correct Answer: D

Rationale: The apex of the heart is formed by the left ventricle, located at the bottom left of the heart, pointing inferolaterally.

Correct Answer: C

Rationale: Sinusoidal capillaries, with large gaps, are found in red bone marrow, liver, and spleen, not typically in pulmonary capillaries.

Correct Answer: D

Rationale: Sympathetic stimulation releases norepinephrine, increasing ventricular contractility.