Fever - Hoffman Flashcards
Fever Criteria
Rectal:
Oral:
Axillary:
Rectal: 100.4 F or 38 C
Oral: add 1/2 degree, starts at 99.9 F
Axillary: add 1 degree, starts at 99.4 F
Aural - accurate if perfect seal achieved
Fever Without a Source
children with a fever lasting for one week or less without adequate explanation after a careful history and thorough physical examination
Fever of Unknown Origin
fever > 101 F of at least 8 days duration
no diagnosis apparent after initial outpatient or hospital evaluation
All babies 3 months or younger with a fever of 100.4 or higher MUST
BE SEEN THAT SAME DAY!
Fever in Infants < 3 months: Bacterial S&S
bacterial infections
s&s: low grade fever, poor feeding, irritability, sleepiness/sleeplessness
Fever in Infants < 3 months: History
Associated Symptoms: respiratory, GI, ENT
Behavioral Symptoms: poor feeding, irritability, poor sleeping, abnormal cry
Exposure to Sick Contacts: siblings, babysitter, day care
Previous Illness
Birth History
Fever in Infants < 3 months: Physical Exam
Gestalt
Abnormal Vital Signs
Toxic Appearance
Signs of Localized Infection
Toxic Appearance
irritability inconsolability poor perfusion poor tone decreased activity lethargy
Common Pathogens < 3 months - Bacteremia
S. pneumoniae Hib group B strep N. meningitis salmonella Listeria monocytogenes
Common Pathogens < 3 months - UTI
E. coli
Common Pathogens < 3 months - Pneumonia
S. aureus
S. pneumoniae
group B strep
Common Pathogens < 3 months - Meningitis
S. pneumoniae Hib group B strep meningococcus herpes simplex enterovirus
Sepsis Evaluation
CBC w/ differential Serum Glucose Lumbar Puncture Blood Culture Urine Culture Inflammation Indicators: ESR, CRP, Procalcitionin Consider: stool culture, CXR
When to admit fever in infant < 3 months for empiric antibiotics? (3)
Toxic Looking
< 1 month of age
Poor social situation
Outpatient Observation Fever < 3 months
Option 1: blood culture, urine culture, lumbar puncture - Ceftriaxone - re-evaluate in 24 hours
Option 2: urine culture, careful observation