What is the disease caused by the parasite Giardia?

A 47-year old woman is brought by ambulance to the trauma bay after being involved in a high-speed motor vehicle collision. She is unresponsive, with a blood pressure of 78/42 and pulse 132. She is immediately intubated and breath sounds are confirmed. Her heart sounds are normal and peripheral pulses are intact. There is no obvious bleeding and two large bore IVs are started. Abdominal ultrasound reveals a fluid collection in the left upper quadrant. She continues to deteriorate and is brought emergently to the OR for exploratory laparotomy, where packing of the abdomen reveals extensive bleeding in the left upper quadrant. What do you expect is the cause of this bleeding?

A deficiency of which vitamin or mineral is responsible for beriberi?

When a patient has true "heartburn," their heart is not actually the problem; they are suffering from Gastroesophageal Reflux Disease (GERD), also known as acid reflux. In this condition, acidic gastric contents inappropriately travel back from the stomach into the esophagus due to the faulty function of which structure?

What causes salmonella?