home pregnancy tests
what is the most sensitive and reliable test?
"First Response Early Result". it works prior to the 4th gestational week.
how does ovulation prediction monitor work?
measures LH and E3G (component of estrogen). must test first month to establish baselines. requires another 10-20 days after baseline. This allows for prediction days in advance instead of hours.
How to Home pregnancy tests work?
most tests use monoclonal or polyclonal antibodies to act against HCG causing a color change.
false negatives on UTI are due to
over 250mg Vit. C per 12 hours strict Veg. diet (must use AZO strip) tetracycline
Factors affecting results are:
testing too soon, urine that is not room temperature, and either a miscarriage or recent birth (within 8 weeks)
patient counseling points
-appropriate timing in regard to missed period - follow directions (how long to wait for results) - use first morning urine - test urine immediately - use mid-stream urine - if 1 week passes after negative and still no period, try again. if still negative call PCP.
how long should you wait to use an ovulation prediction kit after d/c oral contraceptives?
1-2 months
steps for successful use of home kits
1. check expiration date and storage req's 2. read and follow instructions exactly 3. precise timing 4. must have good vision 5. contact physician with positive test results or if patient has a question
Ovulation prediction kit false positive factors
1. medications that promote ovulation (clomid) 2. condition associated with high levels of LH (polycystic ovary syndrome (PCOS) and menopause) 3. pregnancy 4. recently discontinued oral contraceptives
False Readings on FOBT EZ Detect
Vitamin C > 250mg/day gives false negative Red Meat = false positive. suppository = false positive toilet bowl cleaners = false positive menstrual/hemorrhoidal blood = false +
what are the two UTI test kits
AZO strips and UTI Bladder infection test
what are the fecal occult blood tests(FOBT)?
ColoCARE and EZ Detect
Factors to Consider:
Complexity, Ease of reading results, presence of a control, cost, appropriateness of testing, ability to accurately conduct the test and interpret the results, and potential for interference with test results
which product has a digital display?
E.P.T. Certainty
normal cholesterol levels
HDL > 40mg/dl TG < 140mg/dL TC < 200mg/dL
What does FSH test for and why?
Menopause. as estrogen drops, FSH increases.
what does the wristwatch ovulation predicion device measure?
chloride ions. they will surge about 6 days before ovulation.
best ovulation prediction kit?
clear blue easy ovulation test pack
AZO strips
detects nitrites and leukocyte esterase in urine to decrease false -. can detect different types of bacteria turns dark tan or purple
UTI bladder infection test
detects nitrites in urine only gram negative bacteria turns pink
false positives on UTI are due to
drugs or dyes (pyridium)
what is the relevance of HCG?
it is detectable in urine 1-2 weeks AFTER fertilization