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