Pseudomonas Oryzihabitans: Symptoms & Treatment

Instructor: Dan Washmuth

Dan has taught college Nutrition, Anatomy, Physiology, and Sports Nutrition courses and has a master's degree in Dietetics & Nutrition.

Pseudomonas oryzihabitans is a type of bacteria that can cause infection in people, most commonly in people who are immunocompromised. In this lesson, learn about the symptoms and treatments for infections caused by this bacteria.

Nick is a 36-year-old physical therapist who was recently diagnosed with testicular cancer. He has been in the hospital for the past two days receiving chemotherapy through an IV. While in the hospital, Nick developed a fever and chills. Nick thought that these symptoms were due to his chemotherapy, but his doctor wanted to run a couple tests on Nick to find out the true cause of these new symptoms. After running several tests, the doctor told Nick that his fever and chills were caused by Pseudomonas oryzihabitans.

Pseudomonas oryzihabitans

Pseudomonas oryzihabitans (also known as Flavimonas oryzihabitans) is a bacteria that can be found in hospitals, often in hospital sink drains, respiratory equipment, and catheters.

Pseudomonas oryzihabitans is a type of bacteria that can cause infections in the human body.

Pseudomonas oryzihabitans is usually non-pathogenic, meaning that is does not cause disease or infection. However, it has been found to cause sickness in people who are immunocompromised, or have impaired immune systems. Many people who are in the hospital are immunocompromised because their immune systems are already fighting other diseases or sickness which makes it more difficult for the immune system to protect the body against additional bacteria, viruses, and other germs.

Infections involving Pseudomonas oryzihabitans usually occur when the bacteria are on medical equipment that are placed in the mouth or blood vessels of hospitalized patients, such as respiratory equipment or catheters. Returning to our example, Nick was receiving chemotherapy through an IV which requires a catheter to be inserted directly into a blood vessel. The Pseudomonas oryzihabitans most likely entered his body through this IV site. These type of infections are called nosocomial infections, meaning they were acquired in the hospital or other medical facility.

Pseudomonas oryzihabitans:Symptoms

Since infections caused by Pseudomonas oryzihabitans usually occur in people who are already sick or immunocompromised, it can be difficult to determine which symptoms are related to this bacteria and which symptoms are related to the previous disease or sickness.

The most common symptom associated with Pseudomonas oryzihabitans is fever. Other symptoms can include:

  • Increased heart rate
  • Chills
  • Low blood pressure
  • Nausea and vomiting
  • Abdominal pain
  • Rapid breathing

Fever is the most common symptom of infections caused by Pseudomonas oryzihabitans.

Pseudomonas oryzihabitans: Treatment

Since Pseudomonas oryzihabitans is a bacteria, treatment most often includes the administration of antibiotics, which are used to kill bacteria in the body. There are some antibiotics that this bacteria is resistant to, such as ampicillin and amoxicillin. However, antibiotics, such as penicillin, gentamicin, and ciprofloxacin, have been shown to be effective in killing the Pseudomonas bacteria.

An important part of treatment for Pseudomonas oryzihabitans infections is to prevent the bacteria from infecting the body in the first place. Therefore, hospitals should practice good hygiene techniques when treating all their patients, especially those who are immunocompromised.

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