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Doctor insights on:
Serum Beta H Cg Test For Pregnancy
1
Does quantitative beta hCG use serum to detect hCG in blood?

Yes: Serum is the part of blood. It is the liquid part left when blood clots and is centrifuged . Many 'blood' tests, including beta HCG are done on serum. ...Read more
Pregnancy (Definition)
When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to ...Read more
2
Home pregnancy test was positive but blood hCG came back negative. Ob perform a blood test again. Hcg 750 progesterone 21. Why first hCG was negative?
Lab error: Presuming the first blood pregnancy test was close to the second, one of them had to be a lab error, probably the first one that was negative. If there is any question about the health of the pregnancy, your doctor can follow the bhcg level to see if it is rising appropriately and obtain an ultrasound when the level is high enough.For more info www.Askyourgynecologist.Org. ...Read more
3
Hcg 50 positive blood test two negative urine please help.

Recheck blood: You need to have the blood levels checked again. You expect the level to about double in 2 days with a normal pregnancy. ...Read more
5
What are reasons for false negative for a quantitative beta hCG test?

False negatives: All lab tests have a certain percentages of false negatives and positives. ...Read more
6
Should serum beta hCG be done fasting?
No: Doesn't need to be. Can be done at any time. ...Read more
7
Which home pregnancy test detects h hcg?

Unclear question: All pregnancy tests measure levels of beta hcg. ...Read more
8
Is a urine HCG test more accurate then a HCG blood test?

No: A blood test measuring HCG will detect pregnancy more reliably than a urine HCG ...Read more
9
Would a testosterone blood test detect pregnancy?

No: Testosterone is a male hormone. Checking the level in females does not help diagnose pregnancy. ...Read more
10
Urine pregnancy test positive one week with blood hCG of 1 and the next week urine pregnancy test negative?

Not pregnant: A positive urine pregnancy test usually means elevated bhcg, however your blood result does not support a diagnosis of pregnancy. ...Read more
11
Positive blood serum pregnancy test June 27. Urine tests still neg. should I be concerned?

June 27? today 6/22: I think you meant 6/17? Serum pregnancy test can detect pregnancy quite a bit earlier than the urine test can... if you tested positive on 6/17 with serum, the urine test should be coming soon.. any question/concern, consult doc. Good luck. ...Read more
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12
Urine tests were positive for pregnancy last week. This week blood tests showed 14 hcg and urine test is negative. Is miscarriage 100% certain?

Yes: May repeat the blood hCG test in 48 hours or so, it will be less than 14, and then you are even more certain. ...Read more
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13
Quantitative blood test for hcg, what is this?

Human Chorionic Gonadotropin: This test comes in two varieties, one a purely "qualitative" one that is intended to detect pregnancy, and a second quantitative one that provides a number, and thus can detect more subtle abnormalities of production either by the fetus, or a tumor. ...Read more
14
Can pregnancy blood test give false negative. 3 days late, urine test negative and blood test negative too?

False negative PG: A false pregnancy test is possible however, in this case you also have a negative blood pregnancy test which is far more accurate. ...Read more
15
Blood pregnancy tests detect pregnancy sooner than urine pregnancy tests, correct?

Yes: Yes is correct! the blood test will turn positive at least several days earlier. ...Read more
16
What are quantitative hCG blood tests?

Hormone test: Human chorionic gonadotrophic hormone is generally increased in pregnancy and serves as the basis of pregnancy tests. Quantitative HCG tests also provide information about the health of the placenta. High HCG levels are also seen in some tumors of the ovary and testes. ...Read more
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18
Progesterone and hCG levels early pregnancy after ivf?

Ok: Most ivf clinics only measure HCG levels approximately 9 days after a day 5 embryo transfer. However, some clinics feel that the combination of HCG levels and Progesterone levels have a more predictive value of a good pregnancy than HCG levels alone. Personally, we only measure hcg. Hope this helps and good luck. ...Read more
19
I had a positive pregnancy test and a positive blood pregnancy then levels declined quickly. Then positive home test. Negative blood. Any suggestions?

See below: Return to your doctor for additional testing, if needed. ...Read more
20
May beta serum hcg 2.2 or reference renege 10.0 mlu/ml im pregnant?

Unclear results: If your BHCG is 2 then this means that you are not pregnant. A BHCG of less than 5 means that you are not pregnant. If you are saying your BHCG is 10 then this could indicate a very early pregnancy and should be repeated. ...Read more
21
If serum beta hCG test is positive that means that pregnancy exists in the body.....But is it necessary to have surgery if we don't want this chils?

Abortion?: I presume you are asking what your options are in case of undesired early pregnancy. If you are less than 7 weeks along, medical abortion is possible with safety and convenience, although hemorrhage is still possible especially if you have fibroids, or your dates are further along than you think. If you are over 7 weeks, dilatation and curettage is warranted. Talk to your gynecologist! ...Read more
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22
I am 28. Few days back i did a blood test to check for pregnancy. It was positive. But Serum beta hCG test result was <2.39. So am i preg or not?

See below: If you did the blood test more than one day after a missed period and HCG was <3, you are not pregnant. How was the blood test positive if HCG was < 3.0? ...Read more
23
What is the best time to take a Quantitative Serum Beta HCG test?

3 wks after sex: There is no need to rush. A pregnancy test gives a reliable result 3 weeks after sex (3 wks after when conception might have occurred), or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test. If a woman gets her normal regular period, then she is not pregnant, and a test isn't needed. ...Read more
24
Can i trust a less than 1 beta hCG test result 11 weeks after last physical contact? Is there any chance of pregnancy?

Trust it: Your HCG level is essentially zero...you are not pregnant. ...Read more
25
Hi, i have not had my menstrual since August 2nd and i had a beta HCG test done today and it is at <1 what does this mean? I have pregnancy symptoms a

No pregnancy: Irregular periods. If your period does not come soon go see a doctor for evaluation. ...Read more
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26
0.11 of beta hCG on qualitative pregnancy test. One month since last intercouse. Can i still be pregnant?

Pregnancy: Most likely not, i recommend to repeat b-hcg and follow up with your provider to make sure no ectopic (tubal ) pregnancy. ...Read more
27
Beta hCG test done today is 0.1... 4 days past ovulation... is it early for pregnancy test?

Way early: Even the most sensitive pregnancy test is not reliable until about 11 days post-fertilization; it doesn't do any good testing earlier. Generally any level below 4-5 should be considered negative. Good wishes. ...Read more
28
Hello.
I had a pregnancy test last night and the report said my beta hcg level is 504 mlU/ml. Is it positive? If yes. What next do u advice?

Pregnant likley: please care for the baby by taking care of yourself, , retest pregnancy; take folic acid , see your obgyn for tests. God bless you for loving the baby if pregnant.never smoke or drink alcohol [during pregnancy , can drink after] ...Read more
29
I have tested thrice for pregnancy test it has come negative also went for blood beta hcg test which is less than 2 any chance of ectopic pregnancy?

No: If you are PG you are PG somewhere, hopeful intrauterine. The embryo and the placenta create the chemicals that are tested for so if the hug is + you are PG. If not, you most probable are not. If you have an ectopic signs of pregnancy will begin and the abnormal implantation will soon be observed. Keep trying if you wish. Good luck. ...Read more
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30
My girl friend is 3 to 4 weeks pregnant, taken beta hCG is positive but pregnancy test strip it showed as negative. Any risk to abort with tablets?

She needs to see GYN: If you both are talking about abortion it's not something you should do on your own. Get to see a ob-gyn soon and discuss options available. Beta HCG more accurate than test strip. ...Read more
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31
I tested positive twice on a blood pregnancy test with a faint line but negative ultrasound and negative beta hcg test. Could i be pregnant or not?

Serum BHCG: A Serum ( blood) BHCG quantitative test is going to be more accurate than a urine pregnancy test. If there is a discrepancy then you will need to ask your doctor for an interpretation of the test result. Your question states that you had a positive blood test and negative BHCG test. That seems contradictory ...Read more
32
Hi, I had unprotected sex, did a beta HCG test after 22 days of possible conception, result was 0.1, no late periods. Does this rule out pregnancy?

99% not pregnant: Wait for your menses to be 100% sure, but it would be extremely rare/unlikely for you to be pregnant. ...Read more
33
I had a positive pregnancy test, however ultrasound did not find anything. Beta -hCG is 825 mlU/mL . last period was 24/12/14
?

Pregnancy: Three possibilities. You are pregnant and have IUP (intrauterine pregnancy) that is not being picked up, 2. You are going to have a miscarriage, 3 you have a ectopic pregnancy. You need to be rechecked and you need a repeat quantitative preg test. ...Read more
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34
My last period was on June 1 ,2017.I did a home pregnancy test and it came out positive.I have no symptoms at all.Waiting for beta hcg test result.

Did you have sex?: If you had sex since your last period and did the test correctly, you are likely to be pregnant. Wish you good health! ...Read more
35
My LMP was 01-14-14, my home pregnancy test negative, my beta hCG 0.8 miu. But my period is not yet arrive.Still have a possiblity to get pregnant?Tnx

Not now: Your pregnancy tests are negative so this means that you are not pregnant at this time. ...Read more
36
Had unprotected sex on 21 Feb,got last period on 5 Feb. pregnancy test kits as tested on 18 March negative. Blood test beta HCG <1.20mIU. Pregnant?

No: Based on the information you provided, you are not pregnant. It would be prudent to repeat the home pregnancy test in a week, unless you get a period by then. Conception, as defined by the generation of a fertilized ovum, occurs within day or so of the sex. However, it takes about 2-3 weeks for the embryo to make enough HCG to produce a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully. If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD. Practice safe sex. Get HPV vaccine. ...Read more
37
Lmp 4/8/15, took pregnancy test on 5/11, passed a couple clots on 5/12 with abdominal and lower back pain. Beta hcg quant done on 5/15...level 48. ?

See OB ASAP: See OB. You maybe miscarried or you may have a non viable pregnancy or simply first trimester bleeding. The way to find out is to have an OB perform a transvaginal ultrasound. If there are fetal heart tones, then close follow up is needed. Do not go on any long trips or travel by air or out of a metro area where health care is accessible in case you do miscarry and bleed heavily. ...Read more
38
Hi, I'm currently on Mirena for 3 1/2 yrs now, my period is stable every 3 to 4 weeks but never late, now I'm almost 3 weeks late with one positive pregnancy test when i was 10 days late and a negative blood test(1.2 beta hcg ), internal ultrasound not sh

It is possible that: you were pregnant and now you are not. A quanitative HCG test should be able to give you an exact answer. You might need to have it done more than once. Remember every method of birth control has a failure rate of some type, but the Mirena (levonorgestrel) is has a very very low failure rate, but it is not zero ...Read more
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39
What is the use of the beta hCG test for pregnency?

Info: It gives the doc an idea about how far along a pt is and also you can gage when to do a sonogram to see the baby. ...Read more
40
I got 90 in beta hCG test after 16 days of iui..is it ok for good pragnancy?

BHCG: That indicates early pregnancy. Your doctor will likely monitor the trend to confirm it is going up. ...Read more
Pregnancy Test (Definition)
A pregnancy test measures a hormone called human chorionic gonadotropin (HCG). HCG is a hormone produced during pregnancy. It appears in the blood and urine of pregnant women as early as ...Read more
Serum (Definition)
Serum is the component of blood that does not contain cells or clotting factors. It does contain electrolytes an ...Read more
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