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1. What is the most common mode of HIV transmission? 2. How else is HIV transmitted? 3. What is the most common mode of work related transmission? p.

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Presentation on theme: "1. What is the most common mode of HIV transmission? 2. How else is HIV transmitted? 3. What is the most common mode of work related transmission? p."— Presentation transcript:

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3 1. What is the most common mode of HIV transmission? 2. How else is HIV transmitted? 3. What is the most common mode of work related transmission? p. 241

4 a) Vaginal secretions b) Kissing c) Semen d) Urine and feces e) Breast milk f) Coughing, sneezing g) Using the same comb as person with HIV

5  What is the main receptor to which the HIV virus must bind in order to gain entry into the host’s body?

6  Viruses cannot reproduce /replicate without a host, what is the host, target cell for HIV?  What is the function of T-cells?  The normal CD4 cell count in an adult is ______?

7  What is the difference between HIV and AIDS?  How long does it take for HIV to become AIDS?

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10  Flu-like symptoms  Fatigue  Sore throat  Enlarged lymph nodes  Headache  Muscle and joint pain  Goes through stages

11 Which stage does this occur?

12 1. Swollen lymph glands 2. Thrush 3. Muscle and joint pain 4. Low-grade fever 5. Oral hairy leukoplakia 6. Sore Throat 7. CD4 + T cells drop to 200 to 500 cells/ μ l 8. Localized infections a. Acute Stage b. Early Chronic c. Intermediate Chronic d. Late Chronic/ AIDS

13 What is major problem rt diagnosis?

14  Diagnostic CDC criteria  CD4+ T cell count below 200 cells/ μ l  Specific opportunistic infection or cancer  Wasting syndrome  AIDS dementia complex (ADC)  Must meet CDC criteria outlined in Table 15- 10 in textbook

15  Enzyme immunoassay (EIA) to detect serum antibodies  If test is negative – what do they do?  If test is positive – what do they do?  If re-test is positive – what do they do?  A confirming test (Western blot)  If this test is positive – reported as +

16  Progression monitored by:  CD4+ T cell counts  viral load  Abnormal blood tests common  Neutropenia, thrombocytopenia, and anemia

17  Measures amount of HIV specific RNA,  Viral load correlates strongly with stage of disease  HIV RNA levels during course of infection  or at the time of seroconversion= 5 million copies  5 yrs= 25, 000 copies  8 yrs= 300,000 copies

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20  When should Therapy be Started?

21  Adherence to drug regimens is critical to prevent  Disease progression  Opportunistic disease  Viral drug resistance

22  Non-nucleoside reverse transcriptase inhibitor (NNRTIs) ex: efavirenz (sustiva)  Nucleoside/nucleotide reverse transcriptase inhibitor (NRTIs/NtRT)  ex: zidovudine (retrovir, AZT, SDV), tenovir DF (viread, TDF) Work by inhibiting viral replication

23  Protease inhibitors – disable protease, a protein that HIV needs to make more copies of itself ex: darunavir (prezista)  Entry/Fusion inhibitors – blocks HIV entry into cells ex: enfuvirtide (FuzeonT-20)

24  Integrase inhibitors – disable integrase, a protein that HIV uses to insert its viral genetic material into that of the infected cell ex: raltegravir (isentress)  Fixed dose combination – contain 2 or more meds from 1 or more drug classes ex.- efavirenz, tenofovir (atripla)

25  Common physical problems  Depression  Diarrhea  Peripheral neuropathy  Pain  Nausea/vomiting  Fatigue

26  Common metabolic disorders  Lipodystrophy  Hyperlipidemia  Insulin resistance  Bone disease  Lactic acidosis  Cardiovascular disease

27  If the side effects occur – what would the nurse expect to happen next?

28  What is the major problem encountered in treating with ART primarily when one drug alone is being used?  What to do about it?

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30  How would the nurse know that ART is effective ?

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32  Major goal: Prevention  Four CDC strategies  Use testing as routine health care  Use rapid testing  Work to modify risky behaviors  Offer tests universally to pregnant women

33  What is important to teach to decrease the risk of spread via:  Sexual intercourse?  Drug use?  Perinatal transmission?

34  Ways to promote a healthy immune system (slow disease progression)  Nutritional support  Moderation or elimination of alcohol, tobacco, and drug use  Mental health counseling  Vaccines  Rest, exercise, and stress reduction  Avoid exposure to infectious agents

35  Needlesticks (open bore needle) or cuts  Skin contact (intact)  Splashes in mucous membrane  (eye, nose or mouth) Source of Exposure HIV %  0.3-0.4  <0.1  0.1

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