What is the approximate number of nephrons in an adult kidney?

You are assessing a patient who is in bright sunlight after collapsing in the hot sun at a picnic. If you cannot immediately move the patient out of the sun, assessment of the pupils will be made more accurate by:

A) shading the patient's eyes. B) using a blue-tinged light. C) retracting the eyelid. D) hydrating the eyes with saline drops.

The skin becomes _________ when red blood cell perfusion to the capillary beds of the skin is poor.

A) pale B) flushed C) cyanotic D) mottled