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305 Chapter 9
Chapter 9
18
09/02/2011

Additional Pharmacology Flashcards

 

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Term
drug therapy during pregnancy and breast-feeding--toxicity
Definition
shortage of reliable data on toxicity from drug use
Term
drug therapy during pregnancy ad breast-feeding--taking drugs
Definition
two-thirds of pregnant women take at least one medication; the majority take more
for pregnancy-related problems
chronic disorders
infectious diseases or cancer
drugs of abuse
Term
drug therapy during pregnancy--physiologic changes
Definition
third trimester-renal blood flow doubled and renal excretion accelerated
tone and mobility of bowel decrease- prolonged transit- increase in absorption
Term
when excretion is accelerated what should you do?
Definition
take drugs more frequently
Term
drug therapy during pregnancy-placental drug transfer
Definition
all drugs can cross the placenta
some can cross more easily than others
Term
adverse reactions during pregnancy
Definition
can adversely affect both mother and fetus
effects:
heparin causes osteoporosis
prostaglandins stimulate uterine contraction
certain pain relievers used during delivery can depress respiration in the neonate
Term
drug therapy during pregnancy - teratogenesis
Definition
literally to produce a monster
birth defects: gross malformations like cleft palate, clubfoot, and hydrocephalus; and neurobehavioral and metabolic anomalies
Term
pregnancy risk categories
Definition
A
B
C
D
X
Term
A
Definition
remote risk of fetal harm
during first trimester
Term
B
Definition
slightly more risk than A
only studied in animals, shows fetal harm
Term
C
Definition
greater risk than B
animal studies show risk of fetal harm
Term
D
Definition
proven risk of fetal harm
studied in women to show fetal damage but benefits may be acceptable
Term
X
Definition
proven risk of fetal harm
studies in women and animals show definite risk of fetal abnormality
adverse reactions
risk outweighs benefits
Term
minimizing risk for teratogenesis
Definition
avoid unnecessary drug use (alcohol, cocaine)
50% of pregnancies are unintended
Term
responding to teratogen exposure
Definition
identifying details of exposure
ultrasound scans
Term
development of pregnancy ad teratogenesis
Definition
conception through week 2
embryonic period 3-8 weeks- gross malformations
fetal period week 9 to term-functions disrupted with teratogen exposure
Term
drug therapy during breast feeding
Definition
drugs can be excreted in breast milk, and effects can occur in the infant
Term
decrease risk of drugs to infant during breast feeding
Definition
take drugs immediately after breast feeding
avoid drugs that have long half life
choose drugs that tend to be excluded from milk and are least likely to affect infant
avoid drugs known to be hazardous