HIV and AIDS Flashcards
Means of spreading HIV (5)
- Sexual transmission
- IVDU
- Blood products
- Vertical transmission
- Organ transplant
What cells are destroyed in HIV
CD4+
What is the normal level of CD4+ and when is the AIDS diagnosis made?
Normal = 500
Changes seen roughly <350 (thrush and skin changes)
AIDS = <200
How many classification stages are there in HIV?
4 clinical stages
Clinical stage 1 (2)
Asymptomatic
Persistent generalised lymphadenopathy
Clinical stage 2 (4)
Weight loss < 10% of body weight
Minor mucocutaneous manifestations
Herpes zoster, within last 5 years
Recurrent upper resp tract infections
and/or performance scale 2: symptomatic, normal activity
Clinical stage 3 (7)
Weight loss >20% of body weight Unexplained chronic diarrhoea Unexplained prolonged fever Oral candidiasis Oral hairy leukoplakia Pulmonary TB Severe bacterial infections
and/or performance scale 3: bed ridden <50% of the day
Clinical stage 4 (lots)
too many to list
AIDS defining conditions
Resp - TB, pneumocystis
Neuro - meningitis, cerebral tomoplasmosis
Derm - Kaposi sarcoma
Oncology - non-hodgekins
How long does seroconversion take?
Abrupt: 2-4 weeks
Self-limiting: 1-2 weeks
Symptoms of primary HIV (6)
- Lymphadenopathy
- Fever
- Malaise/lethargy
- flu-like symptoms
- Pharyngitis
- Toxic exanthema (wide-spread rash)
What can primary HIV look like?
Glandular fever - EBV serology not in-keeping
When to treat?
Encourage at DIAGNOSIS regardless of CD4+ count
<350 should art treatment
<200 treatment needs to start ASAP
Any pregnant women need to start before 3rd trimester
What is the life expectancy dictated by?
Nadir CD4+ count - lowest count before medication
What are the challenges of HIV care in 2018? (7)
Malignancy Osteoporosis Cognitive impairment cerebrovascular disease IHD Diabetes Renal disease