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Pyrexia of Unknown Origin (P.U.O) Quiz

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What is the definition of pyrexia of unknown origin (PUO) according to Petersdorf and Beeson?

A temperature greater than 39°C on several occasions, accompanied by more than 2 weeks of illness, and failure to reach a diagnosis after 2 weeks of in-patient investigation

An elevation of the body temperature to a level above normal, ranging from 36.5-37.4° C, accompanied by diurnal rhythm

A 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 (correct)

An elevation of the body temperature for more than three weeks (38.3°C or more) with no definite diagnosis made after doing the initial investigations

What are some physiological causes of fever?

In hot weather, During ovulation, During pregnancy

After meals, In hot weather, After vigorous exercise

During ovulation, In infants, After hot bath

After meals, After vigorous exercise, During pregnancy (correct)

What is the normal range for body temperature?

36.0-37.0° C

36.5-37.4° C (correct)

37.0-38.0° C

37.5-38.5° C

What is the terminology for abnormally high body temperature between 38.1 - 39° C?

<p>Moderate grade (A)</p> Signup and view all the answers

What are some causes of fever?

<p>Infections, Neoplasms, Auto-immune diseases, Endocrine disturbances (A)</p> Signup and view all the answers

Study Notes

Fever and Pyrexia

Pyrexia of unknown origin (PUO) is defined as a fever that lasts for more than 3 weeks, with a temperature above 38.3°C, and fails to respond to antibiotic therapy, according to Petersdorf and Beeson.
Physiological causes of fever include:
- Inflammation
- Infection
- Tissue damage
- Immune response
- Hormonal fluctuations
The normal range for body temperature is 36.5-37.5°C.
Abnormally high body temperature between 38.1-39°C is termed as moderate fever.
Causes of fever include:
- Infections (bacterial, viral, fungal, or parasitic)
- Inflammatory responses (e.g., rheumatoid arthritis, lupus)
- Cancer
- Medication reactions
- Vaccinations
- Environmental factors (e.g., heat stroke, sunstroke)

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Description

Test your knowledge about Pyrexia of Unknown Origin (P.U.O) with this quiz by Dr. Hasan Sedeek Mahmoud. Explore the definition, causes, and diagnostic work up for PUO cases, and enhance your understanding of fever and heat disorders.