A contagem absoluta de linfócitos (CAL) mede o número exato de linfócitos em uma amostra de sangue, em vez de expressá-los como uma porcentagem. Isso proporciona uma avaliação mais precisa da saúde do sistema imunológico.
Para adultos, a faixa normal de CAL é 0,7 - 3,1 x10E3/µL (700–3.100 linfócitos por microlitro de sangue). Valores fora dessa faixa podem indicar disfunção imunológica, infecção ou condições subjacentes de saúde.
Os linfócitos são um tipo de glóbulo branco essencial para a defesa imunológica. Eles ajudam a proteger o corpo contra infecções, doenças e agentes invasores, reconhecendo e eliminando substâncias nocivas.
Os linfócitos têm a capacidade de "lembrar" invasores estranhos (antígenos). Quando expostos a um patógeno, alguns linfócitos se tornam células de memória, permitindo uma resposta rápida e eficiente caso o mesmo antígeno reapareça. Essa memória imunológica é a base da vacinação.
Os linfócitos monitoram constantemente o corpo, interagindo com fagócitos (como macrófagos e monócitos) e células dendríticas para coordenar a resposta imune.
A contagem de linfócitos é avaliada em um hemograma completo (HC), realizado em exames de rotina ou quando há suspeita de infecção, distúrbios imunológicos ou doenças do sangue.
Os níveis de linfócitos podem flutuar devido a diversos fatores, como:
Os linfócitos se originam na medula óssea e amadurecem antes de entrar na corrente sanguínea e no sistema linfático.
Os linfócitos são maiores que os glóbulos vermelhos, mas ainda são microscópicos. Ao microscópio, eles apresentam:
Os linfócitos representam 20% a 40% do total de glóbulos brancos.
| Marcador | Contagem Normal (células/µL) | Percentual Diferencial | Baixos (<700/µL) | Altos (>3.100/µL) |
|---|---|---|---|---|
| Linfócitos | 700 - 3.100 | 20 - 40% | Pode indicar supressão imunológica ou distúrbios da medula óssea | Pode indicar infecção, inflamação ou leucemia |
A contagem absoluta de linfócitos (CAL) é calculada usando a fórmula:
CAL = Contagem Total de Glóbulos Brancos (WBC) × Percentual de Linfócitos
Exemplo:
Cálculo:
CAL = 8.000 × 0,2 = 1.600 células/µL (dentro da faixa normal).
Ter uma contagem de linfócitos muito baixa ou muito alta pode indicar:
- Disfunção imunológica
- Infecções persistentes ou graves
- Doenças autoimunes
- Distúrbios hematológicos (como leucemia)
Monitorar regularmente a contagem absoluta de linfócitos ajuda a detectar precocemente problemas de saúde, permitindo um diagnóstico e tratamento adequados.
Your medical lab tests hold vital information about your health. Our tools help you understand what's going on and how to take action.
$15 $5.99/first month
Cancel or upgrade anytime
A linfocitose ocorre quando os níveis de linfócitos no sangue ultrapassam a faixa normal. Esse aumento geralmente é uma resposta imune normal a infecções, mas em alguns casos pode indicar uma condição subjacente, como um distúrbio autoimune ou câncer no sangue.
Os linfócitos são um tipo de glóbulo branco essenciais para a defesa imunológica. Eles ajudam o corpo a:
Os níveis de linfócitos geralmente aumentam em resposta a infecções virais, bacterianas ou parasitárias, como:
Em alguns casos, a linfocitose pode ser um sinal precoce de leucemia ou linfoma. As neoplasias associadas a altos níveis de linfócitos incluem:
A linfocitose é bastante comum, especialmente em pessoas que:
Embora a linfocitose não possa ser evitada, é possível reduzir o risco de suas causas subjacentes ao:
A linfocitose geralmente é detectada através de um exame de sangue chamado hemograma completo (HC).
A linfocitose em si não causa sintomas. No entanto, podem surgir sinais relacionados à condição subjacente, como:
Muitas pessoas descobrem que têm linfocitose apenas após um exame de sangue de rotina.
A avaliação médica pode incluir:
Se a contagem de linfócitos estiver temporariamente alta, o médico pode solicitar um novo exame depois de algumas semanas para verificar se os níveis voltam ao normal.
O tratamento depende da causa subjacente.
Na maioria dos casos, quando a causa é uma infecção leve ou temporária, nenhum tratamento é necessário.
Em alguns casos, a linfocitose pode ser um sinal inicial de uma condição mais grave, como leucemia linfocítica crônica (LLC). Testes adicionais podem ser necessários para descartar ou confirmar diagnósticos mais sérios.
A linfocitose geralmente se resolve sozinha quando a causa subjacente é tratada. Se estiver associada a uma doença crônica ou câncer, pode ser necessário um acompanhamento a longo prazo.
Consulte um médico se apresentar:
O médico poderá investigar a causa da linfocitose e indicar exames adicionais ou tratamento, se necessário.
Anthony
Unlimited Plan Member since 2021
I have been using Healthmatters.io since 2021. I travel all over the world and use different doctors and health facilities. This site has allowed me to consolidate all my various test results over 14 years in one place. And every doctor that I show this to has been impressed. Because with any health professional I talk to, I can pull up historical results in seconds. It is invaluable. Even going back to the same doctor, they usually do not have the historical results from their facility in a graph format. That has been very helpful.
Karin
Advanced Plan Member since 2020
What fantastic service and great, easy-to-follow layouts! I love your website; it makes it so helpful to see patterns in my health data. It's truly a pleasure to use. I only wish the NHS was as organized and quick as Healthmatters.io. You've set a new standard for health tracking!
Paul
Healthmatters Pro Member since 2024
As a PRO member and medical practitioner, Healthmatters.io has been an invaluable tool for tracking my clients' data. The layout is intuitive, making it easy to monitor trends and spot patterns over time. The ability to customize reports and charts helps me present information clearly to my clients, improving communication and outcomes. It's streamlined my workflow, saving me time and providing insights at a glance. Highly recommended for any practitioner looking for a comprehensive and user-friendly solution to track patient labs!
Uma contagem baixa de linfócitos, conhecida como linfocitopenia (ou linfopenia), ocorre quando os níveis de linfócitos caem abaixo da faixa normal. Isso pode indicar uma infecção, distúrbio imunológico ou outra condição subjacente que requer atenção médica.
Severa linfocitopenia aumenta o risco de infecções virais, bacterianas, fúngicas e parasitárias incontroláveis.
Baixos níveis de células T ou células NK enfraquecem a capacidade do corpo de combater infecções.
Deficiência de células B pode levar a infecções recorrentes ou graves.
A linfocitopenia pode ser adquirida (desenvolvida ao longo do tempo) ou hereditária. As causas mais comuns incluem:
O sistema imunológico ataca erroneamente células saudáveis, reduzindo a produção de linfócitos. Exemplos:
Alguns tipos de câncer do sangue e seus tratamentos podem diminuir os níveis de linfócitos:
Condições que afetam a produção de células sanguíneas incluem:
Muitas infecções podem reduzir os níveis de linfócitos temporária ou permanentemente:
Algumas pessoas nascem com linfocitopenia devido a mutações genéticas, como:
A falta de nutrientes essenciais pode afetar a produção de linfócitos. Causas incluem:
Alguns fármacos suprimem a produção de linfócitos, incluindo:
Linfocitopenia geralmente não apresenta sintomas diretos, mas pode aumentar o risco de infecções frequentes ou graves, cicatrização lenta de feridas e fadiga crônica ou fraqueza.
Infecções – Medicamentos antivirais, antibióticos ou antifúngicos
Doenças autoimunes – Imunossupressores ou terapias direcionadas
Câncer ou distúrbios da medula óssea – Quimioterapia, radioterapia ou transplante de medula óssea
Linfocitopenia induzida por medicamentos – Ajuste de dosagem ou troca de medicação
Casos leves podem não exigir tratamento, enquanto casos graves precisam de monitoramento e intervenção.
Embora nem todos os casos possam ser prevenidos, fortalecer o sistema imunológico pode ajudar.
A linfocitopenia é frequentemente detectada em exames de rotina, como o hemograma completo.
Algumas pessoas podem apresentar níveis levemente baixos de linfócitos sem consequências clínicas.
Casos leves geralmente se resolvem sozinhos, especialmente se forem causados por infecções recentes ou medicamentos.
Seu médico pode monitorar tendências na contagem de linfócitos ao longo do tempo para avaliar a necessidade de exames adicionais.
Se houver infecções frequentes, fadiga persistente ou febre inexplicável, um médico deve ser consultado para avaliação. Exames complementares podem incluir imagem, testes genéticos ou biópsia de medula óssea para investigar a causa subjacente.
Guiding our users for 10 years to promptly understand, track, and act on their laboratory results.
$15 $5.99/first month
Cancel your subscription at any time.
$250/once
full premium version
$45/month
track your clients’ labs
Cancel your subscription at any time.
Guiding our users for 10 years to promptly understand, track, and act on their laboratory results.
Personal plans
track personal results
Professional Plan
track multiple client's results
$15 $5.99/first month
$250/once
own it for life
$45/month
for health professionals
Complete Plan
Unlimited Plan
$15 $5.99
$250 full version
Are you a health professional?
Level up your lab report analysis with our Pro plan, built for health practitioners like you.
Health Business Account
$45/month
Cancel your subscription at any time.
Unlock additional Pro plans when you sign up.
Anthony
Unlimited Plan Member since 2021
I have been using Healthmatters.io since 2021. I travel all over the world and use different doctors and health facilities. This site has allowed me to consolidate all my various test results over 14 years in one place. And every doctor that I show this to has been impressed. Because with any health professional I talk to, I can pull up historical results in seconds. It is invaluable. Even going back to the same doctor, they usually do not have the historical results from their facility in a graph format. That has been very helpful.
Karin
Advanced Plan Member since 2020
What fantastic service and great, easy-to-follow layouts! I love your website; it makes it so helpful to see patterns in my health data. It's truly a pleasure to use. I only wish the NHS was as organized and quick as Healthmatters.io. You've set a new standard for health tracking!
Paul
Healthmatters Pro Member since 2024
As a PRO member and medical practitioner, Healthmatters.io has been an invaluable tool for tracking my clients' data. The layout is intuitive, making it easy to monitor trends and spot patterns over time. The ability to customize reports and charts helps me present information clearly to my clients, improving communication and outcomes. It's streamlined my workflow, saving me time and providing insights at a glance. Highly recommended for any practitioner looking for a comprehensive and user-friendly solution to track patient labs!
Healthmatters is a highly-personalized health dashboard.
Instead of searching for your lab results in different places or tracking them down from different providers, Healthmatters houses, organizes, and interprets them all in one central location.
With a Healthmatters account, you can dive into the details of each biomarker and gain insights into the meaning behind your medical test data, anytime, anywhere.
For our professional users, Healthmatters provides intuitive tools that not only streamline analysis but also save valuable time when delving into your client's lab report history.
Healthmatters.io personal account provides in-depth research on 4000+ biomarkers, including information and suggestions for test panels such as, but not limited to:
You can combine all test reports inside your Healthmatters account and keep them in one place. It gives you an excellent overview of all your health data. Once you retest, you can add new results and compare them.
If you are still determining whether Healthmatters support your lab results, the rule is that if you can test it, you can upload it to Healthmatters.
While we work with many popular labs, we welcome reports from lots of other places too.
It's as simple as this: if you can get a test done, you can upload it to Healthmatters and we can interpret results from any lab out there. If laboratories can analyze it, we can interpret it.
If you’re on the hunt for a specific biomarker, contact us and we'll add it to our database. Anything from blood, urine, saliva, or stool can be uploaded, understood, and tracked with your Healthmatters account.
There are two ways to add your test reports to your Healthmatters account. One option is to input the data using the data entry forms. The other method is to utilize our "Data entry service."
Our data entry forms offer an easy, fast, and free way for you to input the reports yourself. Self-entry allows you to add an unlimited number of reports at no cost. We make the self-entry process user-friendly, providing dozens of templates that pre-populate the most popular laboratory panels and offering instant feedback on entered values.
For those who prefer assistance, we offer a "Data entry service" to help you input your data. Simply attach an image or file of your lab test results, and a qualified team member from our data entry team will add the results for you.
We support various file types, including PDFs, JPGs, or Excel. This service is particularly useful if you have many reports to upload or if you're too busy to handle the data entry yourself.
Our special data entry service makes it easy to add your results to your private dashboard. Just attach an image or a file of your lab test results, and our skilled data entry team will do the work for you. It's all done by humans, ensuring that your data is entered accurately and with personal care for each client.
Depending on your account, the data entry service can be included for free or come at an additional cost of $15 per report.
For users on the Complete monthly plan, the first report is entered free of charge, and each additional report incurs a fee of $15.
Unlimited account holders enjoy the entry of ten reports without charge. Subsequent reports are subject to a $15 fee per report.
Additionally, users on the Complete plan can upgrade to a yearly subscription from the account settings. The annual subscription includes a data entry service for five reports.
The Unlimited plan is a one-time purchase for $250, and it covers your account for a lifetime with no additional payments.
For the Complete plan, the cost is $15 per month. You have the flexibility to cancel it anytime through your account settings, ensuring no further payments. To avoid charges, remember to cancel at least a day before the renewal date. Once canceled, the subscription remains active until the end of the current billing cycle.
Additionally, you can upgrade to the yearly Advanced plan from within your account. The annual cost is $79, and it comes with a data entry service for five reports.
You can always upgrade to a lifetime version with a prorated price from a monthly or yearly subscription.
Simply log in and navigate to your account settings to cancel your subscription. Scroll down to locate the 'Cancel' button at the bottom of the page. Ensure you cancel at least one day before the renewal date to prevent any charges. Once cancellation is requested, the subscription remains active until the conclusion of the current billing cycle.
Our goal has been to make your Healthmatters account as intuitive as possible.
We’ve crafted multiple ways for you to navigate your data, whether you're glancing at a single report or delving into your historical test reports.
1. Graph View:Dive into a visual journey with our biomarker graphs, showcasing over 40 data points. Combining years of results unveils trends, empowering you to make informed decisions. Our visualization tools make it a breeze to compare and understand changes over time, even if your results are from different labs. A search function and filters simplify the exploration of extensive data, allowing you to focus on what needs attention.
2. All Tests ViewExplore neatly organized reports on a timeline, highlighting crucial details like dates, critical results, and lab/panel names. Each report opens up to reveal in-depth descriptions and additional recommendations for each biomarker. The history of previous results is just a click away, and you can download a comprehensive report for deeper insights. Color-coded and user-friendly, it's designed for easy reading, understanding, and navigation.
3. Table View:For a holistic view of all biomarkers side by side, our table view is your go-to. Results are neatly displayed in a categorized and dated table, ideal for those with an extensive test history. Utilize sorting, filters, and color-coding to enhance your analysis and gain extra insights.
Yes, you can download information from your account. We can compile your labs into a CSV file. To download all your labs, you can go to Account Settings, and at the bottom of the page, you will find a link to download your information.
Yes, you can print your report. To do so, navigate to "All tests" and open the report you wish to print. You'll find a print button in the right corner of the report. Click on it, and your browser's print window will open. If you prefer to print in a bigger typeface, adjust the scale using the print window settings.
Yes, you can! We highly recommend activating Two-Factor Authentication (2FA) for your account. To do so, please navigate to the "Profile and Security" section of your account, where you will find instructions for activating 2FA.
Yes, you can. When entering values for the biomarker, you will see an "Edit Range" button. Click this button, and you'll have the option to enter a custom range.
A personal account is all about keeping your own lab test results in check. It's just for you and your personal use.
The professional account is designed for health professionals who wish to track and organize their clients' laboratory results.
To learn more about Healthmatters Pro, please refer to the professional page.
At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put industry-leading security standards in place to help protect against the loss, misuse, or alteration of the information under our control. We use procedural, physical, and electronic security methods designed to prevent unauthorized people from getting access to this information. Our internal code of conduct adds additional privacy protection. All data is backed up multiple times a day and encrypted using SSL certificates. See our Privacy Policy for more details.
Basófilos (Absoluto), Basófilos (Percentual), Células Brancas do Sangue (Leucócitos / WBC), Células Vermelhas do Sangue (Eritrócitos / RBC), Concentração de Hemoglobina Corpuscular Média (CHCM), Contagem de plaquetas / Plaquetas, Eosinófilos (Absoluto), Eosinófilos (Percentual), Hematócrito (HCT) / Volume de Glóbulos Compactados (VGC), Hemoglobina, Hemoglobina Corpuscular Média (HCM), Linfócitos (Absoluto), Linfócitos (Percentual), Monócitos (Absoluto), Monócitos (Percentual), Neutrófilos (Absoluto), Neutrófilos (Percentual), RDW-CV (Largura de Distribuição das Hemácias) em %, Volume Corpuscular Médio (VCM), Volume Plaquetário Médio (MPV)
