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Simmons NURP 532 - Week 1 > Week 1 - Pediatric Fever > Flashcards

Week 1 - Pediatric Fever Flashcards

1
Q

Temperature of a fever

A

>= 100.4F or 38C

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2
Q

Accurate temperature measurement in children

A

Rectal thermometer in children < 3 y.o.

Oral thermometer in children > 5 y.o.

Axillary, temporal, tympanic thermometers are less accurate

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3
Q

Time of day when core temperature is lowest

A

AM; 0400-0800

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4
Q

Time of day when core body temperature peaks

A

Early PM; 1600-1800

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5
Q

Age stratification

Neonates?

A

0-28 days (4 weeks)

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6
Q

Age stratification

Young infants?

A

29 - 90 days (approx 3 months)

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7
Q

Age stratification

Young child?

A

91 days to <= 36 months

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8
Q

Normal rectal temperature range

A
  1. 9-100.2F
    (36. 6-37.9C)
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9
Q

Goal of fever

A

mechanism utilized by the body in fighting infection–retards reproduction of bacteria and viruses; enhances neutrophil production and T-lymphocyte proliferation; aids in body’s acute reaction

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10
Q

T/F Degree of fever correlates with severity of illness

A

False. The general appearance is a stronger indicator. So a low temperature does not negate a serious bacterial illness.

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11
Q

Goal of fever mgmt

A

Improve child’s comfort so they can follow plan of care

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12
Q

Physiology of fever

A

Infection induces macrophages to release cytokines that function as endogenous pyrogens to circulate to anterior hypothalamus; the hypothalamus then increases the levels of prostaglandin E2 which raises the core temperature set point

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13
Q

Fever mgmt recs: When?

A

Utilize when temp is > 102F (likely bacterial) or persistently > 101F

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14
Q

Fever mgmt recs: How?

A
  1. Non-pharmacological -
  • hydration
  • appropriate clothing and ambient temp
  • tepid water baths for temp > 104F
  • Do not allow shivering
  • Never use alcohol or ice baths
  1. Pharm mgmt -
  • acetaminophen 10-15 mg/kg/dose q 4-6 hours (FIRST LINE)
  • ibuprofen (children age 6+ months)
    • Temp < 102.5F: 5 mg/kg/dose q 6-8 hours
    • Temp >=102.5F: 10 mg/kg/dose q6-8 hrs
  • Naproxen - not good -
  • alternating acetaminophen and ibuprofen may increase risk of med error/toxicity
  • avoid ASA!!
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15
Q

Causes of fever in neonates (2)

A

Congenital or acquired infections, i.e. 1) late onset group B strep, or 2) acquired 2/2 anatomic or physiologic dysfunction, i.e. renal

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16
Q

Causes of fever in all children (11)

A
  1. bacterial, fungal, parasitic, or viral infections
  2. vaccines
  3. biologic agents
  4. tissue damage
  5. malignancy - neoplasms
  6. drugs
  7. collagen-vascular disorders
  8. endocrine disorders
  9. inflammatory disorders - teething
  10. environmental - heat stroke
  11. if temp > 105.8F - likely CNS dysfunction such as malignant hyperthermia, drug fever, heat stroke
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17
Q

What age group who presents with a fever requires an automatic sepsis work-up including blood cx and empiric antibiotic therapy initiation?

A

Any young infant < 3 months/90 days

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18
Q

Definition of fever without a focus

A

An acute febrile illness < 5 days in which the etiology of the fever is not apparent after careful history and physical examination of a child less than 24 months of age

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19
Q

Most infants < 90 days have causative agent as ________, however, still need to rule out _____ disease so require a _____ work-up.

A
  1. Viral
  2. Bacterial
  3. Sepsis
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20
Q

Birth - 24 months: Greatest risk of unsuspected occult bacteremia w/ E. coli. What are common SBIs? (3)

A
  1. UTI
  2. PNA
  3. bacteremia
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21
Q

Any child < 36 months who is ill-appearing should have the following tests…(10)

A
  1. CBC w/diff
  2. Glucose
  3. CRP
  4. PCT
  5. blood cultures
  6. CSF testing
  7. UA and culture
  8. CXR
  9. Stool cx if diarrhea with blood or mucus in stool
  10. If in season, rapid testing for influenza/RSV/enterovirus
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22
Q

Red Flags - Infants who need to be admitted to the hospital (16)

A
  1. Prematurity
  2. Underlying health conditions
  3. Parents are unreliable historians and/or caretakers
  4. Ill or toxic-appearing
  5. Skin color is ashen, blue, mottled, or pale
  6. Lethargic, weak
  7. High-pitched cry, decreased response
  8. Poor feeding
  9. tachypnea or tachycardia
  10. Chest/abdominal retractions
  11. Petechiae
  12. Seizure
  13. Capillary refill > 3 seconds
  14. decrease UOP
  15. Bulging fontanel
  16. Non-blanching skin rash
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23
Q

Subjective data – Associated symptoms - all children (7)

A
  1. Current level of activity/lethargy
  2. Activity level prior to fever onset
  3. Current eating and drinking pattern
  4. Eating or drinking pattern prior to fever onset
  5. Apperance
  6. Vomiting or diarrhea
  7. Urinary output
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24
Q

Subjective data - Social History - very young children (29-90 days) (5)

A
  1. Ill contacts
  2. Recent travel history of child and household contacts
  3. Exposure to animals, kitty litter
  4. Vaccination status of household members
  5. Identify household members: primary caregiver, exposure to recent immigrants, homelessness and poverty
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25
Q

Subjective data - Past Medical History of very young children (29-90 days) (3)

A
  1. Chronic illness
  2. Perinatal infection
  3. Congenital anomalies
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26
Q

Subjective data - Family history - very young children (29-90 days) (2)

A
  1. Mother’s medical history, e.g. HIV+ 2. Genetic illness
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27
Q

Subjective data - Current medications - all children (2)

A
  1. Immunization history (esp. recent immunizations)
  2. Meds used to treat fever, illness
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28
Q

ROS (7 areas)

A
  1. General appearance
  2. HEENT - conjunctivitis, swollen nodes, ear pain

3, Respiratory - RR, wheezing, crackles, retractions, cough, shortness of breath

  1. Cardiac - HR, chest pain
  2. GI - appetite, wt. loss, n/v/d
  3. GU - voiding pain, frequency
  4. Neuro - any changes in LOC, activity level
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29
Q

Objective Data - all children (3)

A
  1. Vital signs - BP, HR, RR, rectal/oral temp, percentiles
  2. Weight - kg
  3. Broselow tape
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30
Q

Physical Exam - VERY YOUNG CHILDREN (29 DAYS-90 DAYS) (9 areas)

A
  1. General - toxic appearing? consolable?
  2. Integumentary - rash? Petechiae? Skin color?
  3. HEENT - reddened TM, otitis media, pharyngitis, strep throat, gingival stomatitis
  4. Respiratory - bronchiolitis, croup, crackles, wheezing
  5. GI - rigid, board-like abdomen
  6. GU - male circumcision
  7. MSK - decreased ROM
  8. Neuro - nuchal rigidity, neurologic exam
  9. Psychiatric
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31
Q

Subjective data - Past Medical History of Neonates

A
  1. Prenatal, perinatal, and neonatal history
  2. Intrapartum fever
  3. Maternal strep group B status

4, Postnatal care

  1. Family hx of death of young infant from infection - any anomalies? immunodeficiency?
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32
Q

Physical Exam - Neonates (3 areas)

A

Hands-off or Pediatric assessment triangle:

  1. General appearance and level of interaction
  2. Work of breathing
  3. Circulation to skin
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33
Q

Neonates - While awaiting work-up results, start empiric antibiotic therapy? If so, what? (3)

A

Yes. 1. Ampicillin AND cefotaxime (c/f meningitis) or gentamicin

  1. Add acyclovir if HSV concern and workup performed
  2. Add vancomycin if c/f meningitis
34
Q

Neonates - additional work-up

A

Refer to ER because will also need: ANC with CBC LP - CSF and culture (bacterial/viral, consider HSV PCR)

35
Q

Young infants - work-up

A

All to be done in ER, w/u same except not full sepsis with low-risk factors; can be discharged home with f/u in 12-24 hours; will be admitted only if caregivers unable to provide follow-up and/or care

36
Q

Young Infants low risk factors (10)

A
  1. well-appearing
  2. previously healthy
  3. full term
  4. no focal bacterial infection
  5. no systemic abx in past 72 hrs
  6. negative UA
  7. normal WBC/ANC
  8. normal PCT < 0.3 ng/ml 9. CXR, no infiltrates
  9. Stool smear negative
37
Q

Very young infants (29-60 days) empiric antibiotics (4)

A
  1. CTX or cefotaxime
  2. Add acyclovir if HSV concern and w/u performed
  3. Add vancomycin if c/f meningitis
  4. Add gentamicin for broader gram-negative coverage
38
Q

Young infants (61-90 days) (1)

A

More likely to have a fever 2/2 immunization If given < 24 hrs and temp < 101.5F - continue monitoring If given > 48 hrs – further w/u (same as 29-60 day infant)

39
Q

Young infants (61-90 days) empiric antibiotics (2)

A
  1. CTX or cefotaxime
  2. Add vancomycin if indicated
40
Q

Inflammatory markers

A
  1. CRP (normal < 2 mg/DL - better sensitivity and predictive value than WBC
  2. PCT (normal < 0.5 ng/mL) higher cost, reduced availability, delay in availability of results
41
Q

Neonates/very young infants < 42 days with vesicular skin lesions, abnormal CSF, or seizures

A

HSV PCR/cx from CSF, mouth/throat, umbilicus and perirectal

42
Q

LP recommended in (2):

A
  1. all febrile neonates
  2. infants/young children with clinical signs of meningitis (nuchal rigidity, petechiae, anormal neuro findings)
43
Q

Rapid viral testing recommended (3):

A
  1. done depending on seasonality
  2. Positive for influenza may make them susceptible to SBI
  3. Positive for RSV may still have a significant risk of UTI
44
Q

CXR recommended (4):

A
  1. Young children > 1 mo w/ respiratory sx (tachypnea, retractions, focal, breath sounds, O2 sat <95%)
  2. Fever >102.2F
  3. WBC > 20K
  4. Cause of most pediatric PNAs (80%) is viral though challenging to establish whether viral or bacterial
45
Q

Suggestive of serious bacterial infections (SBI) (5):

A
  1. UA: > 10 WBCs/hpf, bacteria, and/or positive leukocytes and/or nitrite findings
  2. WBC > 15K 3. ANC > 10K 4. CRP > 40 5. PCT > 0.5
46
Q

Past medical history for Young children 91 days - 36 months (3)

A

As for neonates and very young infants plus:

  1. identify previous infectious episodes/risk factors for SBIs
  2. Incomplete immunization against strep pneumoniae or H flu b
  3. Neonatal and perinatal history if younger than 9 months
47
Q

Family history for Young children 91 days - 36 months (5)

A
  1. Episodes of recurrent infections among siblings and first cousins
  2. History of maternal fetal loss
  3. Parental HIV
  4. Chronic infections (hep B, hep C, TB) of immediate or extended family
  5. Presence of acute illness in the family (e.g. croup or respiratory infection)
48
Q

Social history for young children (91 days - 36 months) (4)

A
  1. Exposure to contaminated drinking water/sewage
  2. Recent travel (particularly international travel)
  3. Attendance at daycare
  4. Exposure to sick individuals outside of the household
49
Q

DDx in children 3-36 months (8)

A
  1. URIs, LRIs
  2. GI disease
  3. Musculoskeletal infections
  4. UTIs, pyelonephritis
  5. Occult bacteremia
  6. Omphalitis
  7. Mastitis
  8. Other skin or soft tissue infections
50
Q

Definition: fever of unknown origin and prolonged fever

A

Fever that lasts more than 3 weeks without discovered cause during 1 week of diagnostic w/u, w/ daily documented rectal fever of > 101F (38C) or oral fever > 100F

51
Q

FUO - usually ______, may require _______ consult; ___% self-resolve

A
  1. viral
  2. ID
  3. 25
52
Q

Definition: prolonged fever

A

single illness in which fever that exceeds that than which is expected for the clinical diagnosis Sometimes may have prolonged fever that precedes FUO

53
Q

DDx in child age < 6 y.o. with FUO/prolonged fever (5)

A
  1. UTI/pyelo
  2. respiratory infection
  3. local infection such as abscess
  4. JRA
  5. leukemia (rare) Make sure to include COVID
54
Q

DDx in child > 6 y.o. but younger than adolescent with FUO/prolonged fever (4)

A
  1. TB
  2. IBD
  3. lymphoma
  4. AI diseases

Make sure to include COVID

55
Q

DDx in adolescent with FUO/prolonged fever (6)

A
  1. TB
  2. IBD
  3. AI
  4. abscesses
  5. chlamydia
  6. lymphoma

Make sure to include COVID

56
Q

Work-up in FUO (16)

A
  1. To be done in primary care
  2. CBC w/ diff
  3. ESR
  4. CRP
  5. UA and culture
  6. blood cultures May add as necesarry:
  7. CMP 8. liver and renal function tests
  8. LDH
  9. RAF
  10. ANA
  11. uric acid levels
  12. PPD or CXR
  13. sinus XR, mastoid XR, GI XR
  14. EBV
  15. CMV
57
Q

Red flags in FUO (13)

A
  1. < 1 month old
  2. bulging fontanelles
  3. marked wt. loss
  4. high WBC
  5. high ESR/CRP
  6. seizures
  7. dehydration
  8. meningitis
  9. decreased feeding
  10. decreased diapers
  11. per parents, child is “not right”
  12. increased lethargy
  13. extreme parental anxiety
58
Q

W/u in FUO with red flags (5)

A
  1. Complete sepsis w/u
  2. If very toxic appearing, may need LP, CT scans in hospital
  3. May consult with ID
  4. May be followed with frequent visits
  5. Testing as symptoms/physical findings develop
59
Q

Kawasaki - seasonal - more common when?

A

late winter and early spring

60
Q

Kawasaki - self-limited and what complications? (4)

A
  1. systemic vasculitis
  2. CAD
  3. coronary aneurysms
  4. acquired heart disease
61
Q

Kawasaki - diagnosis

A
  1. based on symptoms

A. fever >= 5 days + 4 of the following:

  • a. dry, cracked mucous membranes (90% incidence)
  • b. maculopapular (or morbilliform) rash, or macular rash in perianal area (70-90%)
  • c. Changes in extremities such as edema of hands and feet, erythema of palms and soles (acute), or desquamation of fingers and toes (subacute)
  • d. bilateral, non-purulent conjunctivitis
  • e. strawberry tongue
  • f. Asymmetric ant. cervical lymphadenopathy
  • g. irritability h. ST, gallop rhythms, innocent flow murmurs, murmurs of aortic or mitral regurgitation
  1. labs: CBC with diff normocytic anemia, leukocytosis, thrombocytosis, neutrophilia with bands
  2. increased CRP/ESR
  3. electrolytes - hyponatremia, high creatinine
  4. LFTS - low albumin, elevated ALT
  5. UA - sterile pyuria (pus without bacteria)
  6. Lipids - abnormal
62
Q

Imaging studies in Kawasaki

A
  1. Echo
  2. EKG
63
Q

Kawasaki mgmt

A
  1. In hospital
  2. More effective when done before 10th day of illness
  3. IVIG
  4. Moderate-high ASAP until afebrile 2-3 days
  5. 2nd dose IVIG if still febrile
  6. C/S until afebrile
  7. Echo f/u
  8. Delay vaccines at least 11 months after receipt of IVIG
64
Q

Kawasaki: higher risk for complications

A

Males age < 6 months or age > 9 years

65
Q

Kawasaki Disease - Stage 1 (acute)

A
  • Lasts about 10 days
  • High fever for >= 5 days - may not respond to antipyretics, abx
  • Conjunctival hyperemia, edema of hands and feet, polymorphous erythematous rash, unilateral lymphadenopathy
66
Q

Kawasaki Disease - Stage 2 (subacute)

A
  • Day 11-25
  • Fever disappears
  • Most symptoms resolve
  • Desquamation of fingers, toes, groin, and perianal region
  • Thrombocytosis
  • Coronary aneurysms seen on echo
  • Non-specific EKG changes
  • Prevention: IVIG + aspirin therapy (an exception to Reye Syndrome)
67
Q

Kawasaki Disease - Stage 3 (convalescent)

A
  • About 1-2 months following initiation of s/s
  • Lasts until ESR back to normal
  • Most symptoms disappear
  • Onychomadesis of toenails - period shedding of proximal end of toinail 2 months after recovery
  • Bow lines are deep transverse grooves on nailbed
  • Cardiac findings: abnormalities of cardiac vessels, myocarditis
68
Q

UTI symptoms in neonates (8)

A
  • Jaundice
  • Hypothermia
  • FTT
  • Sepsis
  • Vomiting or diarrhea
  • Cyanosis
  • Abdominal distention
  • Lethargy
69
Q

UTI symptoms in Toddlers & Preschoolers

A
  • malaise, irritability
  • difficulty feeding
  • Poor weight gain
  • Fever
  • Vomiting or diarrhea
  • Malodor
  • Dribbling
  • Abdominal pain/colic
70
Q

UTI symptoms in School-Age children

A
  • Classic dysuria with frequency, urgency and discomfort
  • Malodor
  • Enuresis
  • Abdominal/flank pain
  • Fever/chills
  • Vomiting or diarrhea
  • Malaise
71
Q

___ is the most common cause of SBI iin children < 24 months with fever without a focus

A

UTI

72
Q

Complicated UTI s/s

A

UTI w/fever, toxicity, and dehydration,

or a UTI occurring in a child 3-6 months of age

73
Q

UTI Diagnosis on UA

A

Positive findings on

  • Urine luekocyte esterase
  • Nitrites
  • Leukocyte count, or
  • Gram stain
74
Q

Empiric tx for Pediatric UTI

A
  • Bactrim - 1st line for uncomplicated lower UTI (age > 2 months)
  • Amoxicillin/augmentin - for young children with uncomplicated UTI or pyelo
  • Cephalexin (age > 6 months)
  • Cefixime (age > 6 months)
  • Macrobid (age > 1 month)

Duration of tx

  • 2-24 months or febrile: 7-14 days
  • > 24 months and afebrile: 3-5 days can be appropriate
75
Q

Protocol for child needing renal and bladder u/s

A

For any 2 y.o who has had first UTI/recurrent UTI/pyelonephritis

76
Q

Pediatriac referral to GU

A
  • High-risk - immunocompromised, abnormal u/s
  • Age < 3 months
  • congenital abnormalities
  • Pyelonephritis
  • Recurrent UTI (about 3 episodes)
77
Q

Lab review:

High WBC + High neutrophils + bandemia

Bacterial, viral, malignancy?

A

Bacterial infection

78
Q

Lab review:

Slightly elevated WBC + elevated lymphocytes + no bands

Bacterial, viral, malignancy?

A

Viral infection

79
Q

Lab review:

Fever + sore throat + atypical lymphocytes + increased LFTs

What specific infection?

A

Infectious mononucleosis

80
Q

Lab review:

Decreased WBC + very high eosinophils

Bacterial, viral, malignancy?

A

Leukemia/malignancy

If slightly high eosinophils - allergic reaction

If very high eosinophils like > 20K, think lymphoma/leukemia

Simmons NURP 532 - Week 1 (1 decks)

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