Chapter 15: Infectious Diseases Flashcards
Transmission
- airborne
- direct contact
- blood borne
- food/water borne
- be sanitary!!!
Vaccination
- immunization has deterred the spread of many adult and childhood diseases such as MMR
Influenza
- 36000 deaths and 200,000 hospitalizations
- fever, cough, sore throat, body ache, headache, chills, and fatigue
- contagious from 1 day before the onset and up to 7 days after they realize they are sick
People at rick for flu
- all age groups
- young children and older adults
- highest prevalence in school-age children
Flu treatment
- analgesics for headache (no aspirin)
- nasal sprays
- antitussives
- flu vaccines
- adequate hydration
- rest
Infectious Mononucleosis
- kissing disease
- caused by epstein-barr virus
- common among college-aged athletes
- herpes virus that attacks lymphocytes and nasopharyngeal cells
- incubation is 10 to 50 days
Mono treatment
- supportive care
- rest
- hydration
- tylenol
- avoid use of NSAIDs over course of illness because of hepatic compromise
Mumps
- contagious viral disease that manifests with enlarged parotid and salivary glands and shows up in sublingual or submaxillary glands
- acute epidemic peaks in late winter
- mainly kids 5-15 yo
- 2-3 week incubation period
- spread via air and silva
Mumps Treatment, prognosis and RTP
- isolate from other players until parotid swelling returns to normal
- analgesics
- antipyretics
- soft diet
- most symptoms resolve w/in 3-10 day
Rubeola
- measles
- before immunization, more than 90% of population was infected by the age of 20
- spread through airborne droplets
- incubation is typically 10 days but can range from 7-18
Rubeola Treatment, Prognosis, and RTP
- OTC analgesics, and antipyretics
- hydration
- antibacterial therapy
- may return to activity when no longer infectious
Rubella
- german measles
- acute contagious virus that produces mild symptoms in children and adults
- acquired through the upper respiratory tract or through placental blood exchange
Rubella risks during pregnancy
- cause death or profound congenital defects in infants born to mothers infected during the first trimester of pregnancy
- growth restrictions
- retinopathy
- mental retardation
- behavior disorders
- diabetes
- cardiac defects
- death
Varicella - chicken pox
- acute
- viral
- highly communicable disease characterized by clusters of maculopapular skin eruptions
Chicken pox signs and sypmtoms
- mild headache is 1st sign
- low-grade fever
- malaise
- anorexia
- vesicular rash within 6-8 hours
- crusting occurs
- disease lasts 4-7 days
- lesions healed within 2-3 weeks
Long term effects of chicken pox
- may be severe in adults, immunosuppressed persons taking corticosteroids or receiving cancer therapy
- conjunctive ulcers, encephalitis, meningitis, cellulitis. guillain-barre
Chicken pox transmission
- droplet contact
- incubation = 2-3 weeks
- individual considered infectious from the time of exposure until final lesions crust over
- virus remains dormant in dorsal root ganglia
Persons at risk for chicken pox
- common childhood disease
- susceptible from 6 months of age to time contract the disease
- immunity is produced after having the disease
Chicken pox treatment
- antihistamines and topical steroids to relieve itching
- vaccination after 1st birthday
- baking soda paste or calamine lotion on lesion
- isolation, cool room, distraction
Herpes zoster - shingles
- acute, cos infection involving the dorsal root ganglia that is characterized by vesicular eruptions and neuralgic pain in various areas of the skin
Shingles s&s
chills fever malaise gi upset 3-4 days before crops of vesicles on erythematous base (along dermatome) hyperesthesia severe pain burning/itching
shingles phases
- postherpetic phase = neuralgia that may persist for months
- long-term effect =
- 7 to 10 days
- urinary retention
- unilateral paralysis
People at risk for shingles
- local trauma
- acute illness
- emotional stress
- immune system compromised
- immunosuppressive therapy
Shingles treatment
- analgesics for pain
- antipyretics for itching
- TENS
- Cryotherapy
Hepatitis A
- liver disease caused by hepatitis A virus (HAV)
- can affect anyone
- single cases or widespread
HAV s&s
- jaundice
- fatigue
- abdominal pain
- loss of appetite
- nausea
- diarrhea
- fever
HAV long term effects
- no chronic infection
- can’t have it twice
- 15% of people infected will have prolonged or relapsing symptoms over 6-9 month period
HAV transmission
- feces
- spread by feces to mouth
- milk
- sliced meat
- shellfish
- salads
HAV persons at risk
- household
- sex contact
- children living in regions of the US with increased rate of HAV
- injecting and non-injecting drug users
HAV Prevention
- vaccine
- immune globulin 2 weeks from infection
- hand washing
HAV vaccine recommendations
- travelers to areas at risk
- drug users
- persons with hemophilia
- chronic liver disease
- children living in infected areas
Hepatitis B
- virus that attacks the liver
- can cause lifelong infection, cirrhosis, cancer, failure, and death
Hepatitis B s&s
- jaundice
- fatigue
- abdominal pain
- pain referred to right shoulder
- loss of appetite
- nausea, vomiting
- joint pain
HBV long-term effects
- chronic infection occurs in: 90% of infants at birth, 30% of children aged 1-5, and 6% of people over age 5
- death from chronic liver disease occurs in 15-20% of chronically infected persons
HBV transmission
- when blood or body fluids from infected persons is enters a non-immune person
- sex
- needles
- needle sticks
- mothers to babies during birth
HBV groups at risk
- multiple sex partners
- gays
- drug users
- infants born to mothers with it
- healthcare and public safety workers
HBV prevention
- vaccine
- condoms
- pregnant get checked
- don’t use IV drugs but if you have to don’t share needles
- don’t share personal items
- tattoos?
- don’t donate body things
HBV treatment and management
- evaluation for liver disease
- don’t use drugs if pregnant
- drinking alcohol can make it worse
- number of new infections has declined
- documented transmission among football players
HBV participation in sport
- non contact allowed depending on symptoms
- refrain from wrestling and boxing
- chronic infection should not participate in close-contact combative sports
Hepatitis C
- liver disease
- spread by contact with blood of an infected person
HCV s&s
- jaundice
- fatigue
- dark urine
- abdominal pain
- loss of appetite
- nausea
HCV long-term effects
- chronic infection = 70-85%
- deaths are
HCV transmission
- sharing blood or body fluids
- sharing needles
- needle sticks
- infected mother
HCV transmission recommendations for testing
- injecting drug users
- clotting factor recipients before 1987
- hemodialysis patients
- recipients of blood or organs before 1992
- infants
HCV prevention
- no vaccine available
- don’t share needles
- don’t share razors
- don’t donate
HCV treatment
- interferon and ribavirin
- combination therapy can get rid of virus in 4 out of 10 persons
- alcohol makes it worse
- decline in # of infections
- usually due to needles/drugs
Hepatitis D
- delta virus that needs the Hep B virus to exist
- sexually transmitted
- 2-20% mortality rate
Hepatitis E
- does not occur in the US
Streptococcal
- small gram-positive chains of bacteria normally found quite often in human tissue
- A,B,C,D, and G
- A,B and D are the most common
Strep A
- tonsilitis
- strep throat
- impetigo
- myositis
- pneumonia
- TSS
- cellulitis
- rheumatic fever
Strep B
- endocarditis
- septic arthritis
- post-partum sepsis
- neonatal pneumonia
Treatment for Strep
- penicillin
- erythromycin
- isolation (scarlet fever)
Staphylococcal infections
- found in skin of 20% of healthy adults
- grape like clusters of gram-positive bacteria that cause a tremendous number of infections
- benign skin wounds
Folliculitis, furuncles, carbuncles
- infections of skin, and subcutaneous tissues by staph
- inflammation
- pain
- hard painful nodules
- discharge
- carbuncles are extremely painful deep abscess, pus, and multiple openings
Management for folliculitis etc.
- topical or oral antibiotic
- incision and drainage of furuncles and carbuncles
- warm compresses
Impetigo
- superficial vesiculopustular infection
- arms, legs. face
- streptococci or staphylococcci
impetigo s&s
- intense itching and burning
- lymphadenopathy
- fluid-filled vesicles that rupture and become crusted skin lesions
- don’t scratch
People at risk for impetigo
- infants, small children
- poor hygiene
- crowding
- poor nutrition
- multiple skin breaks
medical treatment for impetigo
- topical antiinfective
- antipruritics for itching
- wash crusted lesions with soap and water, cool, moist compresses
- mittings
MRSA
- 100,000 people are treated annually
Encephalitis
- inflammation of the brain
- viral infection
- primary = direct viral invasion of brain and spinal cord
- secondary = typically complication of a viral infection in another part of the body
- rare but most common mosquito-borne disease in US
Aseptic meningitis
- inflammation of the meninges and CSF
- less severe than bacterial meningitis
- lasts 7 to 10 days
Bacterial meningits
- acute and life threatening
- 100 to 125 cases annually on college campuses 5 -15 students die as a result
red flags for meningitis
- severe headache
- high fever
- stiff neck