Exam4- HIV disease Flashcards
HIV patho
retrovirus
-changes itself to be inserted into the host and it can never be killed
What is HIV’s genetic material?
RNA: single stranded ribonucleic acid
How is RNA converted in the HIV life cycle?
Reverse transcriptase (RT) is used to covert single stranded RNA into double stranded DNA
Role of intergrade enzyme in the HIV life cycle
Integrase enzyme allows the viral double stranded DNA to be inserted into the double stranded DNA of the host
HIV Life Cycle
- Attachment and fusion
- Injection of core
- Uncoating
- Conversion to DNA
- Circular DNA
- Entrance into nucleus
- Integration
- Transcription
- Translation
- Protein modification
- Assembly of core
- Budding
Effects of HIV
0f CD4+ T-cells patient has, whether any opportunistic infections have occurred, indicates difference
Immune system can attack & destroy early on; 3 of HIV particles overwhelms system over time
HIV s/s
- acute infection develops within 1st month after infection
- night sweats, chills, headaches, muscle aches, rash,, sore throat
-symptoms fade & patient feels better (some may not look into the symptoms due to them leaving so fast)
Stage 1
confirmed HIV infection
CD4-T call count >500 cells mm3
Stage 2
Confirmed HIV infection
CD4 T-cell count b/w 200-499 cells mm3
Stage 3
confirmed HIV infection
CD4 T-cell count <200 cells mm3 or > 200 with a documented AIDS defining illness (ex. pneumocystis pneumonia)
Stage 4
Confirmed HIV infection
No other information regarding CD4 cell counts or AIDS defining illness
Not worse, just don’t know the answer to the questions
Long-term nonpregressors (LTNPs)
genetic mutation does cause a resistance to the virus entering the host cells. HIV positive for greater than 10 years & without symptoms
Health Promotion
Educate best hope for prevention
3 ways HIV usually transmitted
sexual
parenteral
perinatal
ABCs
A- abstinence
B-be faithful to one partner
C- use condoms