You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Amongst various current criteria for FUO (Fever of Unknown origin), one relates to body temperature = and explain in detail?
Ans. d (101deg F). (Ref: Harrison's 17th edition, P. 130).PUO/FUO# Petersdorf and Beeson (1961)# Temperature > 101deg F (38.3degF) on several occasions# Duration of fever > 3 weeks# Failure to reach diagnosis despite inpatient investigations for 1 week.Also Remember:Neutropenic FUO# Neutrophil count < 500/cmmHIV Associated FUO# Duration of fever >4 weeks# And inpatient investigation with failure to reach diagnosis is > 3 daysMost common cause of PUO# Infection (26%) -m/c extrapulmonary TBMost common cause of PUO in elderly# Multisystem disease (Giant cell artheritis)Undiagnosed Cause for FUO# 25-30Malignancies associated with FUO# Ca colon (most common cause)# Hepatoma# Gall bladder Ca# Lymphoma, leukemia# Pancreatic cancer# Renal cell cancer# Sarcoma# Atrial myxoma# Renal angiomyoliposa