Medical Terminology

Hematemesis and Causes of Vomiting Up Blood

What is hematemesis? Hematemesis (UK ~ haematemesis) is the medical term for the vomiting of blood either mixed with partially digested gastrointestinal contents and mucus or consisting entirely of blood. Blood in the vomit can vary in color from fresh and bright red to degraded maroon blood or even dark brown to black >> Read More ...

What is Melena and Hematochezia? Signs of Bleeding in the Stool

There are two medical terms that are used to describe the presence of blood in the stool. Melena (UK ~ melaena) is the passage of black, tarry stools which is indicative of blood that has degraded. Hematochezia is the passage of bloody stools, where the blood appears fresh and red to maroon in color. Color of Blood in >> Read More ...

Process of Respiration in Humans – Diagram

What is Respiration? The process of respiration involves four stages –  ventilation which we know as breathing (inhalation or inspiration and exhalation  or expiration), exchange of gases between the air in the lungs and blood stream (pulmonary diffusion), transport of gases in the blood (perfusion) and exchange of >> Read More ...

What is Dyspnea? Shortness of Breath, Difficulty Breathing

Dyspnea is the medical term for difficulty breathing, typically presenting as shortness of breath or labored breathing. The term dyspnea encompasses a number of different breathing difficulties, which may be vary in sensation and experience among patients. Despite the differences, the sensation is usually that of strained >> Read More ...

What are Analgesics? Opioid and Non-Opioid Painkillers

What is an analgesic? An analgesic is any type of drug that relieves pain although this may only be a partial relief at times. It should not be confused with anesthetics that block pain and other impulses in the nerves to a degree that there is numbness. Analgesics are commonly referred to as painkillers or pain-killers >> Read More ...
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