Ch. 6: Antiviral and Antiretrovirals Flashcards
Antivirals actions and uses
decrease symptoms of viral infection, antiherpes, antiinfluenza, or neuraminidase inhibitors
Adverse reactions of antivirals
many of these are given topically and have few recognized side or adverse effects; some drugs are new, so information is still being collected
Antiviral nursing implications and patient teaching
Medications do not cure, follow specific storage instructions, report adverse reactions, encourage immunocompromised patients in areas with impure water supplies to drink bottled water only
Antiviral Drugs for Herpes Simplex Virus (HSV) Infections
herpes simplex virus type 1 (HSV-1)
Responsible for cold sores
herpes simplex virus type 2 (HSV-2)
responsible for genital herpes infections and lesions
Actions and uses of Drugs for HSV Infections
forming “counterfeit” molecules that block the virus and its enzymes from making more genetic material and virions
used to prevent and control HSV infections
Antiviral Drugs for Influenza actions and uses
prevent the virus from opening the outer coat
prevent an infection in a patient who has been exposed to the virus or to reduce the symptoms of an existing influenza infection
Antiviral Drugs for Cytomegalovirus (CMV) and Respiratory Syncytial Virus (RSV) actions and uses
inhibit the viral enzyme need to make more DNA for viral reproduction
Drugs are used on a short-term basis to reduce infection symptoms
Antiviral Drugs for Hepatitis B and Hepatitis C
drugs used to treat HBV fall into three classes, the nucleoside reverse transcriptase inhibitors (NRTIs), the DNA polymerase inhibitors, and interferon
Retrovirus
Organisms that transmit their own information into the cell’s DNA
Acquired Immunodeficiency Syndrome (AIDS)
Viral disease, high mortality rate
High risk populations of AIDS
Homosexual and bisexual men, IV drug users, People in prison, female sex partners of people in high-risk groups, children born to mothers at risk
Antiretrovirals action
Interfere with the ability of a retrovirus to reproduce or replicate
Types of antiretrovirals
Reverse transcriptase inhibitors, Protease inhibitors, Fusion inhibitors, HIV Integrase strand transfer inhibitors
Reverse transcriptase inhibitors
Act early in viral life cycle
Protease inhibitors
Act later in viral life cycle
Fusion inhibitors
Prevent the AIDS virus from invading the WBC
HIV Integrase strand transfer inhibitors
Slow the advancement of HIV by blocking the HIV integrase enzyme
Antiretroviral uses
Slow advance of AIDS
Maintain immunity
Prevention of HIV in infants born to HIV-infected mothers
Prevention of HIV in health care workers exposed to HIV
Antiretroviral pre-exposure prophylaxis treatment
prevent HIV transmission to the uninfected sex partners of people who are HIV positive and are using cART, can only be taken by people who are HIV negative
Nursing indications and patient teaching of antiretrovirals
Adherence is essential
Medications do not cure
Report all drugs and supplements used, including OTC and CAM
Signs and symptoms of pancreatitis
Signs and symptoms of peripheral neuropathy
Routes of disease and transmission
Need for social and financial support