Details Title: 14.Varicella - Zoster Virus Description: Finished Total Flash Cards: 11 Created: 12/15/2008 09:20:30		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Bible Studies Flashcards
Cards in this set: Term Varicella Zoster Virus Definition -capsid w/ double stranded DNA -from the herpese viridae family   Causes two distinct infections:   Chicken pox and Herpes Zoster (shingles) Term Spread of Varicella Zoster Definition -virus enters via nasopharynx   Primary viremia - spreads to lymph nodes, liver and spleen   Secondary viremia - from liver and spleen to skin and other regions (like nerves)   Term Chicken Pox Definition Caused by Varicella Zoster virus Hallmark are skin lesions starting on trunk and moving outwards   -highly contagious -patients are infectious 48 hours before onset of rash Term Latent Varicella Zoster Definition -found in 90% of the population -those over 60 are most susceptible to reactivation Term Complications of Varicella Zoster Definition -secondary bacterial infections (stre. pyogenes of staph aureus)   -meningeal irritation seen 21 days after onset of chickenpox in children Term Herpes Zoster Reactivation Definition aka. Shingles   -reactivation of latent VZV that usually occurs in 6th to 8th decades of life -unilateral eruption within a dermatome (often with severe pain)   eg. only one side of face is affected -infection of trigeminal nerve often involves the face Term zoster ophthalmicus Definition infection of ophthalmic branch of trigeminal nerve with Varicella Zoster Term prophylaxis Definition when drugs are administered to prevent a disease (or in secondary prophylaxis, to prevent the worsening of the condition) Term Administration of prophylaxis measures for Herpes Zoster Definition administration of zoster immune globulin (ZIG) or VZIG should be given within 72 hours (and up to 96 hours) of infection Term treatment of Herpes Zoster Definition Oral Acyclovir famciclovir Pain releivers   Note:  No asprin for those under 19 because it can cause Reys syndrom where fatty degeneration of the liver and encephalitis occurs. Term Organisms that Cross the Placenta Definition ToRCHeS   TOxoplasmosis Rubella Cytomegalovirus HErpes and HIV Syphillis