Chapter 13: Reproductive Choices - Riverside Community College
Transcript of Chapter 13: Reproductive Choices - Riverside Community College
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Chapter 13: Reproductive Choices
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Abstinence
• Avoidance of
copulation
• The only birth
control method that
is 100% effective!
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Barrier Contraceptives
• Block the meeting of egg and sperm by
means of a physical or chemical barrier
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Condoms • Male condom
- Pre-lubricated, spermicide treated are
best
- Check expiration dates
- If lubrication is used, it MUST BE water-
based
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• Female condom
- External ring,
internal ring with
polyurethane
sheath in between
- May be more
effective than male
condom at
preventing
pregnancies &
infections
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Male / Female Condoms
• 15-20% failure rate
(5% when used with
spermicide)
• No side effects
(except latex
allergies)
• Do protect against
STIs
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Contraceptive Sponge
• Polyurethane foam
laced with
spermicide
• Covers entrance to
cervix
• Can be inserted up
to 24 hours before
sex
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Vaginal Spermicide
• Designed to kill sperm and potential pathogens
• Foams, creams, jellies, suppositories
• Some meant to be used with other methods, some used alone
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Vaginal Contraceptive Film (VCF)
• Thin, 2”-square film
laced with
spermicide
• Folded and
inserted, dissolves
into gel
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Spermicides
• NEARLY 100%
effective when
paired with a
condom
• 20-50% failure rate
alone
• Prevent some
infections
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Prescription Barrier Methods
• Diaphragm – rubber
“bowl” that covers
cervix and holds
spermicide
• Cervical cap – smaller
& thicker than
diaphragm
• FemCap – Non-latex
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Prescription Barrier Methods
• Can be inserted
several hours before
sex
• Must be left in for 6
hours after
• No hormones or side
effects
• 6-16% failure rate
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Hormonal Contraceptives
• Mimic hormones produced during pregnancy which can: - Block hormones that stimulate ovulation - Make cervix hostile to sperm - Prevent implantation of egg
• **DO NOT protect against STIs**
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Oral Contraceptives
• “The pill”
• 28-day packs are most
common (21 with
hormones, 7 without)
• Combination (estrogen
+ progestin) or minipills
(progestin only)
• Must be taken at same
time each day
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Oral Contraceptives
• Up to 99% effective
• Reduced risk of some cancers
• Side effects: nausea, weight gain, decreased sex drive
• Risks for smokers, those with high BP, diabetes, seizure disorders
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Ortho Evra Patch
• Transdermal (through the skin)
• Continuous low dose of estrogen and progestin
• Looks like a band-aid, but waterproof
• Increased risk of heart attack and stroke
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NuvaRing
• Ring made of flexible
plastic that is inserted
into vagina
• Slowly releases
estrogen and
progestin
• Stays in place for 3
weeks, removed for 1
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Contraceptive Injection
• Ex: Depo-Provera
• Progestin only – prevents implantation
• Shot given every 3 months
• Cannot use for more than 2 years – bone mineral loss
• Increased risk of chlamydia and gonorrhea
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Emergency Contraception
• Reactive (rather than proactive) hormonal contraception
• Ex: Plan B (“morning after pill”)
• Prevents ovulation or implantation
• Non-prescription if over 18
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Intrauterine Device (IUD)
• Molded plastic that is
inserted into uterus
• Interferes with
implantation
• Old model associated
with serious
complications
• Last 1-10 years
• 99.2-99.9% effective
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Mirena Intrauterine System
• IUD + continuous
low-dose of
progestin (so it’s
partly a hormonal
method)
• Effective for 5 years
• 99% effective
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Fertility Awareness Method
• “Rhythm method”
• Woman tracks her
cycle for at least 8
months
• 20% failure rate
• Complies with
Roman Catholic
Church
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Male Sterilization
(Vasectomy)
• Severing of vas
deferens
• Short, in-office
procedure to
block flow of
sperm
• Reversal is about
50% effective
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Female Sterilization
(Tubal ligation or Tubal occlusion)
• Cutting, tying, or
blocking fallopian
tubes
• Outpatient surgery
using laproscopy
• Can sometimes be
reversed