10 Questions
What is the normal range for body temperature?
36.5-37.4°C
According to Petersdorf and Beeson, how is pyrexia of unknown origin (PUO) defined?
Temperature greater than 38.3°C on several occasions, accompanied by more than 3 weeks of illness, and failure to reach a diagnosis after 1 week of in-patient investigation.
What is the term for an abnormally high body temperature ranging from 37.5 - 38°C?
Low grade fever
What are some physiological causes of fever?
After meals, after vigorous exercise
What is the main marker associated with fever?
Inflammation and severity
What is the term for the elevation of body temperature for more than three weeks (38.3°C or more) with no definite diagnosis made after initial investigations?
Pyrexia of unknown origin (PUO)
According to Petersdorf and Beeson, how is pyrexia of unknown origin (PUO) defined?
Temperature greater than 38.3°C on several occasions, accompanied by more than 3 weeks of illness, and failure to reach a diagnosis after 1 week of in-patient investigation
What are some common causes of fever mentioned in the text?
Infections, Neoplasms, Auto-immune diseases
What is the normal range for body temperature?
36.5-37.4°C
What are some physiological causes of fever mentioned in the text?
After meals, After vigorous exercise
Study Notes
Body Temperature and Fever
- The normal range for body temperature is not explicitly stated, but a temperature above 37.5°C is considered abnormal.
Fever Classification
- Pyrexia is an abnormally high body temperature, ranging from 37.5°C to 38°C.
- Hyperpyrexia refers to an extremely high body temperature, above 41.5°C.
Pyrexia of Unknown Origin (PUO)
- According to Petersdorf and Beeson, PUO is defined as an elevation of body temperature above 38.3°C for more than three weeks with no definite diagnosis made after initial investigations.
Physiological Causes of Fever
- Some physiological causes of fever include:
- Infections
- Inflammatory reactions
- Tissue damage or necrosis
- Immune-mediated reactions
Markers of Fever
- The main marker associated with fever is an elevated white blood cell count (leukocytosis).
Causes of Fever
- Some common causes of fever mentioned in the text include:
- Infections
- Inflammatory reactions
Test your knowledge on Pyrexia of Unknown Origin (P.U.O) with this quiz by Dr. Hasan Sedeek Mahmoud. Explore the definition, causes, and diagnostic workup for PUO cases while learning from a renowned expert in Tropical Medicine and Gastroenterology.
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