Cerebrospinal fluid leak post lumbar puncture:

An image viewed under the microscope is clearly seen under both the 10´ and 40´ objectives, but it is not visible under ´100. What is the most likely reason for this?

a. Oil is too thick on the slide. b. The slide is placed upside down on the stage. c. The slide has a coverslip on it. d. No oil is on the slide.

Patients with hyperventilation syndrome (HVS), also known as ____, markedly decrease their arterial pCO2 levels, causing a leftward shift in the oxyhemoglobin curve and hypocalcemia.

A. chest pain B. psychogenic dyspnea C. coronary artery spasm D. coronary vasospasm