Fertility Kits Flashcards
How does ovulation affect body temperature?
Body temperature drops 12-24 hours before ovulation; it then increases by 0.2 to 0.6 degrees and is maintained until menstruation.
Cervical mucus at time of ovulation
clear, viscous, stretchy (like uncooked egg white)
What is the optimal time for sexual activity?
5 days before ovulation and on the day of ovulation
How long are eggs viable for ovulation?
12-24 hours
Basal thermometer method relies on the concept that…
basal temperature drops slightly 12-24 hours before ovulation
Basal thermometers are able to detect small changes in temperature ranging from ___ to ___.
36-38 degrees
What do saliva test kits look for in a saliva sample?
Intense fern-like patterns in a sample on a glass slide
Estrogen increases ____ levels in saliva. It is the ______ that shows up as fern like patterns on a glass slide.
salt; salt crystallization
Fern like pattern appears ___ days before ovulation and may last ____ days after.
3 days; 2-3 days
Saliva test kit counselling points
- Use kit first thing in the morning
- No eating, drinking, or brushing teeth before use
- Lick the glass slide and let it dry for 10 minutes
What do ovulation predictor kits do?
Identifies the LH surge just before ovulation
LH surge ranges from ___ to ___ mIU/mL and last from ___ to ____ hours.
20 to 100mIU/mL and 10 to 31 hours
How do you read the results of a OPK?
A line as dark as or darker than the reference line indicates a positive result.
Why might you get a false positive result from OPK?
- clomiphene drug (elevates LH)
- polycystic ovarian syndrome (elevates LH)
- abortion in last month
- peri-menopause
- recent pregnancy (hCG looks like LH)
Why might you get a false negative result from OPK?
not enough urine, not enough exposure time
Clearblue easy ovulation tester is the best one because it can detect LH levels as low as ______.
22mIU/mL
What does the fertility monitor measure?
LH levels and estrogen metabolites
What are some factors that can affect the accuracy of fertility monitors?
- OC, HRT medications
- tetracycline
- Clomiphene
- Pregnancy or recent pregnancy
- breast feeding
Once egg is fertilized hCG can be detected in the blood and urine after how many days?
9-10 days
What does it really mean when companies claim 99% accuracy in HPT?
devices are able to detect hCG levels 99% but not based on specific hCG concentrations
All HPT tests were positive at 100mIU/mL but only if read at ____ mark.
10 minute
What is lowest hCG concentration detectable by a HPT?
12.5mIU/mL
What can account for a false positive result with HPT?
- recent birth or miscarriage
- hCG injections
- hCG secretion from tumours
- misinterpretation of evaporation line
- defective device
What time frame is considered too early to use a HPT?
9 days before missed menses
