Frequently Asked Questions
How sensitive
is Clearview HCG?
How accurate is the
test?
Can urine samples be
stored in the fridge / freezer?
Can the
test be used directly from the fridge?
Do urine
samples need to be collected in containers containing
preservatives?
How soon can
Clearview HCG be used?
When is the best
time of day to test?
How
critical is the timing and are the results stable?
The Test Line is very
faint, what does this mean?
Sometimes
the Test Line can be fainter or darker than the Control Line. How
should this result be interpreted?
No Control Line has
appeared, what does this mean?
Will
fertility drugs affect the test result?
Do
hormonal contraceptives affect the test?
Can
Clearview HCG be used to detect ectopic pregnancy?
How sensitive is Clearview
HCG?
Clearview HCG is sensitive to 25 mIU/ml hCG in urine.
How accurate is the
test?
Clearview HCG has been shown to be > 99% accurate in clinical
trials.
Can urine samples be stored
in the fridge / freezer?
Yes, they can be stored for up to 72 hours between 2 - 8°C or up to
3 months if frozen at -20°C. However, samples must always be
brought to room temperature prior to use.
Can the test be
used directly from the fridge?
No, although the kit can be stored at 2 - 30°C, it must be allowed
to equilibrate at 18 - 30°C before use.
Do urine samples
need to be collected in containers containing
preservatives?
No. You do not need to add preservatives to the urine sample. The
use of preservatives has not been validated with Clearview
HCG.
How soon can Clearview
HCG be used?
Clearview HCG can detect hCG in urine at concentrations ≥ 25
mIU/ml. On the first day of the expected period the level of
hCG in the urine of a pregnant woman is expected to range between
50 – 250 mIU/ml.
When is the best time of
day to test?
It is possible to use Clearview HCG with a urine sample collected
at any time of day, however a first morning urine sample will
usually contain the highest level of hCG.
How
critical is the timing and are the results stable?
The result should be read 3 minutes after sample application after
which time the device should be discarded.
The Test Line is very faint,
what does this mean?
Samples containing 5 – 25 mIU/ml hCG may produce weak positive
results. In such cases a repeat test is recommended 48 to 72 hours
later. However, provided the Control Line is present a weak
positive should be recorded as a valid positive result.
Sometimes
the Test Line can be fainter or darker than the Control Line. How
should this result be interpreted?
The presence of the Test Line in the Result Window indicates a
positive result, regardless of its intensity compared to the
Control Line.
No Control Line has
appeared, what does this mean?
The test has not run correctly. This may occur if the pouch has
been opened for too long prior to the test being carried out. It
could also be a consequence of adding insufficient or excess sample
to the test.
Will fertility
drugs affect the test result?
Fertility drugs containing hCG can give misleading results. We
recommend that a pregnancy test is not carried out until at least
14 days have passed since the administration of these drugs.
Testing too soon may give a false positive result.
Do hormonal
contraceptives affect the test?
No. However if a woman has recently discontinued the use of
hormonal contraceptives her periods may not be regular. In such
cases we recommend testing 19 days after the last unprotected
sexual intercourse.
Can
Clearview HCG be used to detect ectopic pregnancy?
Clearview HCG can be a useful aid in the diagnosis of ectopic
pregnancy, although it cannot distinguish ectopic pregnancies from
normal pregnancies, and since ectopic pregnancies may produce lower
levels of hCG than normal pregnancies, a positive result may not be
seen as early.
If an ectopic pregnancy is suspected, it should always be followed
up with a suitable confirmatory method.