Test di gravidanza e Beta HCG

test di gravidanza Test di gravidanza e Beta HCG

Quando la futura mamma ha il dubbio di una gravidanza, la cosa più ovvia e più frequente è l’uso dei così detti “test di gravidanza”. I test immediati, quelli cioè che si acquistano in farmacia o al supermercato, sono basati sull’individuazione della gonadotropina corionica (HCG) nelle urine. Questo è un ormone prodotto dal trofoblasto, un tessuto che si trasformerà successivamente nella placenta, intorno al 21-22° giorno del ciclo (tali numeri corrispondo solo ad un ciclo regolare con ovulazione al 14° giorno).
Sono costituiti da uno stick di plastica con all’interno una striscia reattiva alla gonadotropina corionica. Per rilevare la presenza della gonadotropina è sufficiente esporre lo stick al flusso di urina e dopo pochi minuti, si è in grado di leggere la quantità di ormone e quindi determinare se l’esito è positivo o no. I test standard danno una risposta con le linee rosa: 2 linee test positivo (si è incinte), 1 linea test negativo (ritenta!). I test di ultima generazione “parlano”: incinta si, incinta no e addirittura danno indicazioni sul numero di giorni in cui si è gravide. Alcuni sono addirittura in grado di rilevare la presenza dell’HCG a partire da 8 giorni dopo l’ovulazione, solitamente vengono venduti in confezioni da due in modo da poter confermare l’esito dopo qualche giorno.

Fin qui tutto più o meno semplice. Chiaramente si fa per dire. Chi cerca un figlio in quei giorni non capisce più niente e non è raro che si acquistino più test non convinti del risultato del primo.

Io non sono da meno: con Supernano sono arrivata a quota 3! Il primo debolmente positivo non mi aveva convinto, il secondo negativo mi ha fatto sprofondare nello sconforto, il 3° dopo qualche giorno ancora debolmente positivo mi ha fatto concludere che era meglio buttare tutto e attendere. Cosa? Il ritorno dalle vacanze… va bè, io sono fatta così, molto fatalista sono partita pensando che al ritorno me ne sarei preoccupata (comunque a mia discolpa devo dire che la mia ginecologa era anche lei in ferie e mai e poi mai sarei andata da qualcun altro!). A settembre il test non era più necessario e neppure il dosaggio delle beta HCG. Supernano era lì, più vispo che mai. E se ci penso, ancora mi sgorga qualche lacrimuccia…….

Ah….con microba è stato diverso: subito 2 belle linee fucsia che non lasciavano adito ad alcun dubbio!

Non sempre, purtroppo, tutto va così liscio. Innanzitutto i casi di falsi negativi non sono così rari, perchè talvolta la concentrazioni di gonadotropina nelle prime settimane di gravidanza non è sufficiente per far reagire la striscia. I falsi positivi invece sono legati alla presenza di gonadotropina derivante da stati patologici.
In casi di esiti dubbi o qualora non sia certa la datazione della gravidanza talora viene consigliato l’esame che rileva la concentrazione di gonadotropina corionica (BHCG) nel sangue. Il dosaggio in realtà andrebbe eseguito solo in casi selezionati, ad esempio quando si sospetta una gravidanza extrauterina. Infatti, in questa situazione, le beta sono superiori a 1000-1500 U/L, ma in utero non si visualizza la camera gestazionale. Negli altri casi, l’esecuzione su larga scala delle beta HCG crea solo confusione ed ansia, spesso immotivata. Infatti se il ginecologo ha a disposizione un ecografo con sonda transvaginale dosare le beta HCG non serve praticamente a niente. È il caso purtroppo di alcuni aborti: il ginecologo verifica l’assenza del battito, ma le beta e sono in aumento; questo perché le beta sono prodotte dalla placenta, pertanto anche in caso di aborto si possono osservare valori stabili oppure in rialzo (ma non in raddoppio ogni due giorni).

Posto qui una tabella con le settimane di gravidanza e i valori di riferimento delle beta HCG:

beta – HCG

VALORI DI RIFERIMENTO

UNITÀ DI MISURA

Non in gravidanza ASSENTE mUI/mL
3 – 4 settimana 9 – 130
4 – 5 settimana 75 – 2.600
5 – 6 settimana 850 – 20.800
6 – 7 settimana 4.000 – 100.200
7 – 12 settimana 11.500 – 289.000
12 – 16 settimana 18.300 – 137.000
16 – 29 settimana 1.400 – 53.000
Secondo trimestre
29 – 41 settimana 940 – 60.000

Altri articoli interessanti:

facebook Test di gravidanza e Beta HCGtwitter Test di gravidanza e Beta HCGgoogle plus Test di gravidanza e Beta HCGstumbleupon Test di gravidanza e Beta HCGoknotizie Test di gravidanza e Beta HCGtumblr Test di gravidanza e Beta HCGreddit Test di gravidanza e Beta HCGpinterest Test di gravidanza e Beta HCGCondividi
Tag:, ,
About Mamma Medico

I consigli di Mamma Medico. Tante informazioni per la salute di bambini e neonati e tanti utili consigli anche per le mamme e le donne in gravidanza

Comments

  1. Thanks , I’ve just been looking for info about this subject for a long time and yours is the best I’ve found out
    so far. But, what in regards to the conclusion?
    Are you sure in regards to the supply?

  2. Gossip Girl is produced by College Hill Pictures, Alloy Entertainment in association
    with Warner Bros. Or you can go for a floral-and-leather dress similar to Rihanna.
    s stunning lace dresses, a huge must-have for this season.

    These one of a kind items are products developed to
    help our customers stay on top of the trends whether your goal is rock star bling,
    bohemian, motorcycle chic, or Hollywood glamorous.
    Many eligible candidates are choosing the bank jobs over others because working in a bank is considered as safe and secure for many people.
    Online shopping gives more insights and exposure to the recent baby fashion trends and chic baby clothing styles.
    Avendon took fashion outside and added movement in contrast to the beautiful still images of
    Steichen’s elegant models. It is no secret that famous designers
    like Alexander Mc – Queen, Gucci, Calvin Klein, Emporio Armani and many others, who want to sell luxury clothing
    items, accessories and fragrances, will choose only famous women to associate
    their names with. I saw a picture of her earlier this week wearing a classic pair of Aviator shades.

    The Olsen twins have been in the spotlight since they were youngsters on
    the TV show “Full House”.

  3. What’s uup to every body, it’s my first pay a visiut of this weblog; this blog
    contains amazinbg and genuiney excellent stuff for readers.

  4. Professional responsibility principles should be incorporated into every area
    of office operations and procedures. The beginning is rather simple: accept
    that you cannot do everything for your business. Various accounting firms allow students to serve as interns.

  5. Mamma Medico says:

    sorry???

  6. Little bold look with emphasized shoulders in suits, jackets and
    outerwear. In addition all models under the age of 30 must sign paper documentations that states that they were never alone with him.
    ” Although their vision statement is only eight words, they focus on how their services will continue to help their customers.

  7. Advanced Plastic Surgery is here to celebrate beauty with its state of the art facilities and innovative
    services such as dermabrasion, BOTOX Cosmetic, body surgeries, and the latest
    Vi – Peel. In recent years the term “mommy-makeover”
    has become more common. There is one error: the sentence
    “The heir who wins the windfall will be the one who finds the.

  8. Plastic surgery has become immensely popular in the last few years.
    In 2009, men undergoing some sort of cosmetic surgery procedure rose eight percent.
    The various types of plastic surgery on the face are:.

  9. The leading plastic surgery clinic in Sydney specializes in offering all types of cosmetic surgery including Face lift, otoplasty, Rhinoplasty, Scar – Revisionn,
    Fat injection and Eyelid surgery. I have never personally had
    any plastic surgery done but there are obvious downsides to plastic surgery such as
    downtime, pain, and possible side effects. Furthermore,
    you need to really feel comfortable with the plastic surgeon you decide on.

  10. I couldn’t simply hide in my own bedroom until the balding area disappeared — if it was still going to vanish.

    Used in determining menstrual irregularities, menopause, pituitary problems,
    suspected gonadal failure and infertility tests. She did not seem too enthusiastic about it and claimed that she had
    just been to the toilet and did not feel like peeing
    any more.

  11. As you can see, the answer to the question can I
    charge my tenant a maintenance fee is not always cut
    and dried. Nowadays, the profession of a plumber is in great demand, thus it
    is becoming more and more popular with each year bringing rather high profit.
    Plumbers differ in supplying their kind of services –
    some are only restricted while other individuals are full which includes the
    complete fireworks. When you talk to the
    representatives of the plumbing service ensure that they have a clear understanding of how the plumbing
    in your home works. The small business owner should definitely review this
    software to determine if it is right for
    his accounting software requirements. Step 3
    Now that all the parts are removed you are ready to install
    the new parts. Pittsburgh has some of the
    most unique architecture of any American city.
    Furthermore, it requires measurement, cutting
    and threading of the pipes. A flex is put on the tubing then it is heated with a torch.

    You will also have an option to do a plumbing course
    on line which can save your lot of money and time.

  12. This way, you can compare companies side by side without
    incurring any extra risk. Buying your own home is one of the biggest
    investments and commitments that most people will experience in a lifetime.

    Once the actual data for period five is collected and recorded into the table, the
    forecast for period six can be calculated.

  13. Keep the mixture cooled and pat it on your lips as often as necessary.
    It might just be a case of trial and error,
    if nothing seems to work speak to your dermatologist for any advice or try a different acne skin care product.
    This is a review of this acne skincare line from this popular Tawainese skincare company.

  14. Who is HCG appropriate for and what exactly is the process for obtaining it.
    You can also start making your oatmeal with
    milk, rather than water. t been faithful in exercise, now may be the time to figure out what you.

  15. - You can enjoy your willowy physique for your life, the weight
    you lose is not temporary and muscle tissue is not damaged as well.
    5 ounces for two meals per day are allowed together with h – CG treatment.
    In immunization process, a minute and weakened quantity of disease-causing pathogen is introduced in the body.

  16. When using this product regularly, most users also notice new growth in areas that were previously thinning.
    Zinc absorption and vitamin C intake could be synergistic.
    By observing all the above tips when faced with the
    problem of hair loss Minneapolis citizens should
    be able to contain avoidable hair breakages.

  17. When using this product regularly, most users also notice new growth in areas that were previously thinning.
    While some causes of hair loss might be associated with how
    you eat and what your physical health is, not all of them involve good diet and
    healthy habits. The step-by-step method of using castor oil for hair
    loss treatment:.

  18. But, consumers will not find it in stores just yet,
    and if they do, they ought to be extra careful.
    insulin is a hormone produced by the pancreas, which facilitates the uptake of glucose by the liver and muscles
    to convert it to glycogen and energy. There’s not enough time to do anything, my schedule is too busy,
    this great show is on tv and I don’t want to miss it.
    On the other side, you can also reward yourself for working out–just make sure you don’t
    reward yourself with food. Leptin deficiency, Adrenal
    disorders cause Cushing Syndrome and Ovarian disorders.
    The Apple Patch Diet isn

  19. Okay, so you have a decent starting portfolio of ‘glamour photography’ shots you’ve taken and assembled to show the
    possibilities of your range and depth of photographic artistry.
    This fabric is intended to be loose fitting, but wear it too loose and you’ll look fat.
    You will be excited watching your kids in pastel tones especially
    when summer comes.

  20. Some of our favorite camp foods can actually be a source for a
    good thematic unit. Camping tents provide shelter and protection for you when you
    are outdoors. Environmental Summer Camps: Review of the Green River Preserve Summer Camp.
    If you will take a moment and notice what you are holding onto about past situations, it will reveal a lot about your current situation. If leaves are not an option, you can easily substitute any object for this lesson. Make it
    an elegant affair, and the students are sure to remember it for some time to come.
    The main purpose of such activities is to help the children build healthy lifestyles and personality.

    Insert strips of red foil or cellophane to resemble flames.

    They should erase the lines where tree branches overlap to make one shape.

    If you don’t have access to the real thing, drape sheets or blankets over
    a clothesline, picnic tables, or some chairs.

  21. I really like it when folks get together and share ideas.
    Great blog, keep it up!

  22. In the last five years, the survey states, a face life, or rhytidectomy, is
    one of the most requested of all invasive procedures.

    And a proficient plastic surgeon with a lot of experience, can take
    that even further. The couple broke up in 1937 as Lamarr finally escaped to London by drugging him.

  23. The older you get, the more likely it is that you’ll
    start to experience thinning and hair loss. Zinc absorption and vitamin C intake could be synergistic.
    These products work the best in younger men who have only begun to lose their hair, and
    in those whose androgenetic alopecia is still in the early stages where hair is
    thinning but continuing to grow.

  24. If you have any prominent connections and social
    media experts you could ask them to write a blog or Tweet about your product,
    this is very helpful in promoting your niche. One thing you can do is employ free and low cost
    online marketing tactics in your plan. Singapore Search Engine Optimisation advisor makes these waves possible for any web site with the best approach and experience mixed.
    This is a GOLD MINE of people that have PROVEN they are behind you
    and willing to make you a part of their Facebook experience.
    It’s about being a great customer service company that delivers parcels, as opposed to a parcel company that
    does customer service when it *has* to. If anything, I’ll bet it pushed you away
    from the sale, not toward it. You should definitely
    think twice before you hire out a company dealing specifically in social media marketing.
    Ultimately, business to business marketers are using social media marketing methods as well as
    SEO more effectively to meet their marketing goals, which
    is beginning to include improved searches. t necessarily
    need to be mentioned or prominently displayed.
    e – Bay pays you a small-to-medium-sized commission each time you make a sale for
    one of their products.

  25. Thankfulness to my father who stated tto mme concerning this weblog,
    ths webpage is genuinely remarkable.

  26. 5 million children under the age of 13 do engage and participate in social media.
    And, of course, follow my training, and you will not only become an expert, but a top earner in the industry.
    You have to treat this with the respect it deserves.
    If you are going to use a microblogging
    service, try getting as many followers as possible.
    People love it when they have a one on one relationship with a company.
    According to a survey, the number one reason social media for hotels is in fad because they help to increase brand awareness.
    Make no mistake: Social media platforms like Facebook and Twitter help cement a solid
    core to help engage the target audience. If you want to reward them with a coupon or
    discount do it privately not to set a precedent for everyone to comment just to get a reward.
    The majority of my current clients are local to north Louisiana, but I love helping small businesses everywhere learn how to put the WOW into
    their online presence. All was fine, until you found out that people aren’t
    following you, liking your Facebook pages or eagerly running to read your
    blog posts.

  27. Before marriage, search carefully for compatibility.
    It’s very vital that you get Plumbing Alameda work made by a specialist.
    Do not just ask any plumber to come over and do some immediate repairs.

  28. Lawat leaf extracts are traditionally used in preventing hair loss,
    promoting hair growth and releaving itchiness and skin inflammation. It is possible
    that combining the two hair loss products in a regimen can address the hair loss problem from two fronts.
    It improves your hair’s elasticity, texture and strength.

  29. In the last five years, the survey states, a face life, or rhytidectomy, is one of the most requested
    of all invasive procedures. This means that you can have
    layers of images one over the other, and each level
    can have its own set of rules and effects applied to it. Furthermore, you
    need to really feel comfortable with the plastic surgeon you decide on.

  30. I really like reading an article that will make people
    think. Also, many thanks for allowing me to comment!

  31. Sweet blog! I found it while searching on Yahoo News.
    Do you have any tips on how to get listed in Yahoo News? I’ve been trying
    for a while but I never seem to get there! Many thanks

Lascia un Commento

*

Ricevi un avviso se ci sono nuovi commenti. Oppure iscriviti senza commentare.

Social Widgets powered by AB-WebLog.com.

Directory Qui Blog Italiani Submit my blog Health motori di ricerca italiani