A 52-year-old female data entry worker complained of bilateral wrist pain. Her physician prescribed a non-steroidal anti-inflammatory drug. Her wrist pain improved; however, over the next 3 months, she noted increasing fatigue and scattered bruises. Past medical history was normal. She was taking no other medications and had no recent chemical exposure. Physical examination revealed pallor and scattered ecchymoses (skin coloration) with petechiae on her chest and shoulders with no other abnormalities.​

How much blood does a healthy agult normally contain

Which finger should not be used when measuring heart rate?

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about the hazards of prolonged exposure to the sun's rays. your curious nature leads you to research the subject further. you're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin d, which is important to maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.