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Confusion (sudden)
Delirium is a sudden change in how well a person's brain is working (mental status). Delirium can cause confusion, change the sleep-wake cycles, and cause unusual behavior. Delirium can have many causes, such as withdrawal from alcohol or drugs or medicines, or the development or worsening of an infection or other health problem.
Complementary and alternative medicine
Complementary and alternative medicine (CAM) is the term for medical products and practices that are not part of standard medical care. Standard medical care is medicine that is practiced by health professionals who hold an M.D. (medical doctor) or D.O. (doctor of osteopathy) degree.
Common cold

The common cold is a viral infection of your nose and throat (upper respiratory tract). It's usually harmless, although it might not feel that way. Many types of viruses can cause a common cold.

Children younger than 6 are at greatest risk of colds, but healthy adults can also expect to have two or three colds annually.

Coma

A coma is a state of prolonged unconsciousness that can be caused by a variety of problems — traumatic head injury, stroke, brain tumor, drug or alcohol intoxication, or even an underlying illness, such as diabetes or an infection.

A coma is a medical emergency. Swift action is needed to preserve life and brain function. Doctors normally order a battery of blood tests and a brain CT scan to try to determine what's causing the coma so that proper treatment can begin.

Colposcopy
olposcopy (kol-POS-kuh-pee) is a procedure to closely examine your cervix, vagina and vulva for signs of disease. During colposcopy, your doctor uses a special instrument called a colposcope. Your doctor may recommend colposcopy if your Pap test result is abnormal
Colostomy
colostomy is a surgical procedure that brings one end of the large intestine out through the abdominal wall. During this procedure, one end of the colon is diverted through an incision in the abdominal wall to create a stoma. A stoma is the opening in the skin where a pouch for collecting feces is attached.
Colonoscopy
colonoscopy (koe-lun-OS-kuh-pee) is an exam used to detect changes or abnormalities in the large intestine (colon) and rectum. During a colonoscopy, a long, flexible tube (colonoscope) is inserted into the rectum. A tiny video camera at the tip of the tube allows the doctor to view the inside of the entire colon.