Infectious Disease Flashcards
Stages of Infectious Disease
- Incubation
- Prodrome
- Illness
- Convalescence
Incubation
Time from entrance of pathogen into the body to appearance of first symptoms; during this time pathogens grow and multiply
Prodrome
Time from onset of non-specific symptoms such as fever, malaise, and fatigue to more specific symptoms
Illness Stage
Time during which child demonstrates signs and symptoms specific o an infection type
Convalescence
Time when acute symptoms of illness disappear
Contact Precautions
Gloves, proper hand hygiene after glove removal, use gloves and gowns for all interactions that involve contact with the child
Contact Precaution Diseases
C. diff
Droplet Precautions
Wear a mask if within 3 feet of the child
Droplet Precautions Diseases
Flu and RSV
Airborne Precautions
Room with negative air pressure with door closed, wear a mask or respirator (N95 respirator)
Airborne Precautions Diseases
TB and measles
Temperature routes and what qualifies as a high temperature?
- Oral: > 37.8 C (100 F)
- Rectal: > 38 C (100.4 F)
- Axillary: > 37.2 C (99 F)
- Tympanic: > 38 C (100.4 F)
- Temporal: > 38 C (100.4 F)
When should you call the pediatrician for temperature?
- Less than 3 months, rectal temperature greater than 38 C (100.4 F)
- Greater than 3 months, temperature greater than 39 C (102.2 F)
- Fever that produces lethargy (regardless of temperature)
- Fever lasting more than 3-5 days
- Fever greater than 40.6 C (105 F)
Treat the fever at home with…
- Ibuprofen
2. Acetaminophen
Ibuprofen for fever
4 to 10 mg/kg/dose
- Must be greater than 6 months old
- Every 6-8 hours
- Do not exceed 4 doses in 24 hours
Acetaminophen for fever
10 to 15 mg/kg/dose
- Every 4 hours
- Do not exceed 5 doses in 24 hours
Antipyretic Action
They decrease the temperature set point by inhibiting the production of prostaglandins
What should never be given to a pediatric patient (less than 19 years old) to lower a fever?
Aspirin - Reye’s Syndrome
S/Sx of Sepsis
- Change in LOC (early sign)
- Lethargy
- Dehydration
- Hypotension (late sign)
- Poor perfusion
- Multisystem organ failure
Why are neonates and young infants more susceptible to sepsis?
- Immature immune systems
- Inability to localize infections
- Lack of immunoglobulin (IgM) which is necessary to protect agains bacterial infections
* * Full workups should be done on these patients
Anticipated Interventions for Sepsis
- Monitor VS (hyperthermia, tachypnea, tachycardia)
- Tests and procedures
- Isolation (contact until cause is known)
- Fluid resuscitation
- Antibiotics
- Vasopressors
CBC for fever
WBC levels will be elevated; in severe cases they may be decreased (this is an ominous sign)
C-reactive protein for fever
Will be elevated
Blood culture for fever
Positive in septicemia, indicating bacteria is present in the blood
Urine culture for fever
May be positive indicating presence of bacteria in the urine
Stool culture for fever
May be positive for bacteria or other infectious organisms
Chest x-ray for fever
May reveal signs of pneumonia such as hyperinflation and patchy areas of atelectasis or infiltration
CAMRSA
Community-Acquired Methicillin Resistant Staphlococcus Aureus
S/Sx of CAMRSA
Skin and soft tissue infections are common
Look for:
- Redness
- Swelling
- Fever
- Possible drainage
CAMRSA Risk Factors
- Contact sports
- Openings in the skin
- Contact with contaminated items and surfaces
- Poor hygiene
- Crowded areas
CAMRSA Diagnostics
Diagnosed through culture
CAMRSA Treatment
- Antibiotics
- Incision and drainage
- Wound care
Scarlet Fever
- Usually occurs with group A streptococci
- Toxin released in blood causing rash
- Most commonly seen in school age children (5-15) (rare under 2)
Isolation Precautions for Scarlet Fever
Droplet
When is scarlet fever no longer contagious?
After 24 hours of antibiotic therapy
S/Sx of Scarlet Fever
- Acute and abrupt onset of symptoms
- Sore throat
- N/V
- Headache
- Rash
- Strawberry tongue
- Enlarged cervical lymph nodes
Interventions for scarlet fever
- Throat swab (rapid and overnight)
- Antibiotics (PCN/erythromycin)
- Education for family
Comfort measures for scarlet fever patient
- Cool mist humidifier
2. Soft foods, warm liquids like soup, or cold foods life popsicles
Is there a vaccination for scarlet fever?
No
What is diphtheria?
Infection of the nose, larynx, throat, tonsils, or pharynx
- Upper airway obstruction and suffocation from pseudomembraneous growth
- Neck becomes edematous and lymphadenopathy
Isolation precautions for diphtheria
Droplet
Is there a vaccine for diphtheria?
Yes
- DTaP for children less than 7
- Tdap for children older than 7
S/Sx of diphtheria
- Fever
- Sore throat
- Poor PO intake due to difficulty swallowing (dehydration)
- Respiratory distress
- Pseudomembrane
- Bull’s neck
Interventions for diphtheria
- Antibiotics and antitoxin (to encourage sloughing of the membrane)
- Bedrest
- Hydration
- Airway management
How is diphtheria diagnosed?
Throat culture
Pertussis
Whooping Cough
- Acute bacterial respiratory infection
- Copious secretions
Is there a vaccine for pertussis?
Yes
- DTaP for children less than 7
- Tdap for children older than 7
Isolation precautions for pertussis
Droplet
S/Sx of pertussis
- “Whooping” cough
- Cyanosis
- Vomiting
- Difficulty eating
- Increased secretions
- Lethargy
- Dehydration
Pertussis Diagnostics
This diagnosis may be confirmed by a variety of laboratory tests
Pertussis Interventions
- Antibiotics
- Hydration
- Humidified oxygen
- Suction
* * A high humidity environment is needed
* * Cough may take months to completely go away
Tetanus
- Bacterial infection from soil, dust, and feces
- Toxins are produced and released - Enters through a break in the skin (wound, burn, street drug injections)
Is there a vaccination for tetanus?
Yes
- DTaP for children less than 7
- Tdap for children older than 7
S/Sx of tetanus
- Wound
- Headache
- Increased muscle tone and spasms
- Cramping of jaw (lock jaw)
- Difficulty swallowing
- Stiff neck
- Seizures
- Fever
- Opisthotonos (abnormal posturing)
- HTN
- Tachycardia
Tetanus Interventions
- Airway management
- Reduce anxiety and stimuli
- Manage pain, spasms, seizures
- Nutrition and fluid management
- Antibiotics and antitoxins
- Wound care
- Education for family