Accuprobe Awareness

In laboratory medicine, a test result's accuracy depends not only on the analyser and analytical process but also on the quality of the specimen submitted for testing. Anticoagulant contamination of a serum (or other) sample is an important but often overlooked pre-analytical error that can produce misleading laboratory results, even when the analyser is functioning perfectly and internal quality control is within acceptable limits. Serum samples are generally collected in plain or serum-separator tubes and are allowed to clot before centrifugation. Contamination may occur when additives from other blood collection tubes inadvertently enter the serum specimen. This can happen because of an incorrect order of draw , inappropriate blood transfer between tubes, collection from an intravenous line, improper phlebotomy technique, or accidental use of the wrong tube . Anticoagulants are not simply inert substances. They contain chemicals specifically designed to alter coagulation or pre...

H1N1 influenza (commonly known as S wine Flu ) is a type of Influenza A infection that can cause anything from a mild respiratory illness to serious complications. The H1N1 virus that caused the 2009 pandemic has since become part of the viruses responsible for seasonal influenza. With influenza circulating in the community, awareness is important, not only to protect ourselves but also to prevent transmission to children, elderly people, pregnant women and those with underlying illnesses. What are the symptoms? H1N1 can begin suddenly. Common symptoms include fever, dry cough, sore throat, runny or blocked nose, headache, body aches, fatigue and chills . Some people may develop vomiting or diarrhoea, particularly children. Symptoms generally begin about 1-4 days after infection and most otherwise healthy people recover within about a week, although cough and tiredness may persist longer. Role of Laboratory Investigations: Importantly, symptoms alone cannot always distinguish influen...

Have you ever undergone the same blood test at two different laboratories and received slightly different results? It can be confusing and sometimes worrying. The immediate thought is often, “Which report is correct?” The answer is that a difference does not necessarily mean that one laboratory is wrong. Laboratory results are measurements, and like all measurements, they have some degree of analytical variation and biological variation . Pre-analytical variation  is one of the most important and frequently overlooked causes of variation. The following factors can influence laboratory results: Fasting or non-fasting status Time of sample collection Exercise before collection Posture Stress Dehydration Prolonged tourniquet application Difficulty during blood collection Hemolysis Lipemia Icterus Delay in transportation Improper temperature during transportation Incorrect tube Inadequate mixing Delayed separation of serum/plasma   There ca...

Tuberculosis (TB) remains one of the most common infectious diseases worldwide. It is caused by the bacterium Mycobacterium tuberculosis . It most commonly affects the lungs (pulmonary TB), but it can also involve other organs (extra-pulmonary TB), such as the brain, lymph nodes, bones, kidneys, intestines, uterus, and other organs. Although several laboratory and radiological tests are available today, diagnosing TB is not always straightforward. Many patients become confused when one TB test is positive while another is negative. They often wonder, "Which report is correct?" Each TB test looks for a different aspect of the disease. Some detect the bacteria directly, while others detect the body's immune response. Therefore, discrepancies are expected in certain situations. Understanding the strengths and limitations of each test helps prevent unnecessary anxiety and inappropriate treatment. Not every mycobacterium causes tuberculosis. True tuberculosis is caused by memb...

  Rapid molecular diagnostics have transformed the diagnosis and management of tuberculosis (TB). CBNAAT (Cartridge-Based Nucleic Acid Amplification Test) and MTB PCR enable early detection of Mycobacterium tuberculosis (MTB) and provide rapid information on drug resistance. Traditionally, most attention has focused on detecting R ifampicin (RIF) resistance, as it is considered an important marker for multidrug-resistant tuberculosis (MDR-TB). However, limiting resistance detection to rifampicin alone may overlook another clinically significant challenge - Isoniazid (INH) resistance. Isoniazid is one of the most effective first-line anti-tubercular drugs and plays a major role in early bacterial killing during treatment. Resistance to INH can occur independently (INH monoresistance) or together with rifampicin resistance. When INH resistance remains undetected, patients may continue receiving standard treatment regimens that are less effective for their infection. The clinical ...

In the field of laboratory medicine, precision is paramount. From sample collection to final analysis, every step must be carefully controlled to ensure that test results are accurate and reliable. One often underestimated but critical aspect of this chain is the maintenance of the cold chain during storage and transportation of blood samples . A lapse at this stage can compromise sample integrity, leading to erroneous results that may adversely affect patient diagnosis and treatment. The cold chain refers to the temperature-controlled supply chain that ensures biological samples like blood, plasma, and serum are kept within specified temperature ranges from the point of collection through storage and transportation until they reach the testing laboratory. Depending on the type of sample and required tests, the temperature may vary. Maintaining these temperatures prevents the degradation of blood components and preserves the biochemical and cellular characteristics essential for accur...

Human metapneumovirus (hMPV) is an important but often underappreciated respiratory virus that belongs to the Paramyxoviridae family. First identified in 2001, hMPV has emerged as a leading cause of acute respiratory infections (ARIs), particularly in young children, the elderly, and immunocompromised individuals. hMPV is distributed globally, with infections occurring year-round but peaking in late winter and early spring in temperate climates. Studies suggest that nearly all children are exposed to the virus by the age of five. Reinfections are common throughout life, although they tend to be less severe in healthy adults. Clinical Features:  The spectrum of hMPV infection ranges from asymptomatic to severe disease. Common clinical manifestations include: Mild upper respiratory tract symptoms: Runny nose, cough, and sore throat. Lower respiratory tract infections (LRTIs): Bronchiolitis, pneumonia, and exacerbation of asthma or chronic obstructive pulmo...

Preventive health check-ups , which typically include a series of blood tests, play a crucial role in maintaining overall well-being. These check-ups help identify potential health issues early, allowing for timely intervention. However, while these screenings are essential, the timing of when you undergo them is equally important. Getting routine blood tests during an acute illness—such as the flu, a stomach bug, or even a common cold—can lead to misleading results and unnecessary concerns. Here’s why it’s best to delay preventive health check-ups until after you've fully recovered from an acute illness. Understanding Acute Illness and Its Impact on Blood Tests: An acute illness refers to a sudden onset condition that usually lasts for a short period. Common examples include the flu, fever, a cold, or gastroenteritis (Vomiting, Diarrhoea). Although these illnesses are temporary, they cause significant changes in the body’s physiology as it works to fight off the infection or infla...

  Glycosuria , the presence of glucose in urine, is commonly associated with diabetes, where high blood sugar levels lead to the spillage of glucose into the urine. However, a perplexing scenario arises when glycosuria occurs alongside normal blood sugar levels. This intriguing condition challenges conventional medical understanding and prompts a deeper exploration into its causes and implications. Under normal circumstances, the kidneys filter blood, reabsorbing glucose back into the bloodstream and preventing its excretion in urine. Glycosuria typically indicates a disruption in this process, often linked to hyperglycemia (high blood sugar levels). But when blood glucose levels are within normal ranges, the puzzle deepens. Possible Causes of Glycosuria with Normal Blood Sugar:  Several conditions and factors can lead to this unusual phenomenon: Renal Glycosuria: A rare inherited condition where the renal tubules are unable to reabsorb glucose efficiently, leading to its pre...

Blood tests are a fundamental part of modern medical practice, offering invaluable insights into a person's health. They can help diagnose conditions, monitor diseases, and guide treatment plans. However, with the increasing availability of direct-to-consumer lab services and online resources, more individuals are choosing to interpret their blood test results without professional guidance. While this might seem empowering, self-interpretation of blood investigations carries significant risks and disadvantages. Misinterpretation of Results One of the primary risks of self-interpreting blood test results is misinterpretation. Blood tests can be complex, with various factors influencing their outcomes. Normal ranges can vary based on age, sex, and even specific laboratory standards. A result slightly outside the normal range may not indicate a serious problem, while a result within the normal range might still be concerning depending on the patient's symptoms and history. Interp...

As the temperature rises and the sun shines brighter, summer brings its own set of health challenges. From heat exhaustion to dehydration, the sweltering heat can take a toll on our bodies if we're not careful. However, with some simple precautions and mindful practices, we can stay healthy and enjoy the season to its fullest. In this article, we'll discuss essential health tips to help you beat the heat wave and maintain your wellness during the summer months. Stay Hydrated: One of the most crucial aspects of summer wellness is staying hydrated. With increased perspiration in the heat, our bodies lose more water, making it essential to replenish fluids regularly. Aim to drink at least eight glasses of water a day, and more if you're engaging in outdoor activities or sweating excessively. Avoid sugary drinks and opt for water, herbal teas, or electrolyte-rich beverages to keep your hydration levels in check. Protect Your Skin: Exposure to the sun's harmful UV rays can ...

  Are you curious about what it's like to work in a Medical Laboratory? Well, buckle up, because it's quite the ride! Working in a medical laboratory is like being on a thrilling adventure every day, filled with excitement, challenges, and discoveries. Let's take a closer look at why it's such an exciting journey. The Quest for Answers: In a medical lab, every day is a quest to find answers to important questions. Doctors and technicians work tirelessly to analyze samples and perform tests to uncover the mysteries of diseases and conditions. It's like being a detective, piecing together clues to solve a puzzle and help patients get the treatment they need. The Cutting-Edge Technology: Medical labs are filled with state-of-the-art technology that makes every task fascinating. From high-tech machines that can analyze DNA to automated systems that can process samples with precision and speed, there's always something new to learn and explore. It's like being ...

Thrombosis with Thrombocytopenia Syndrome (TTS) is a rare but severe clotting disorder. While TTS is rare, certain COVID-19 vaccines , particularly those based on adenoviral vectors, have been associated with an increased risk of TTS events in some individuals. This syndrome involves blood clot formation (thrombosis) accompanied by low platelet levels (thrombocytopenia), often occurring within a few weeks of vaccination. While the occurrence of TTS post-vaccination is exceedingly rare, it sparked global concern and led to thorough investigations by health authorities. The exact mechanism behind TTS is still under investigation, but it is believed to involve an immune-mediated response triggered by the vaccine, leading to the formation of antibodies that activate platelets, culminating in clot formation and platelet consumption. Symptoms of TTS can vary depending on the location and severity of blood clots. Common signs may include: Severe headaches or migraines Abdominal pain or swell...

Serum protein electrophoresis (SPEP) is a valuable diagnostic tool used not only in the detection and monitoring of multiple myeloma but also in various other medical conditions. Here are some examples: Monoclonal Gammopathy of Undetermined Significance (MGUS): SPEP is crucial in diagnosing MGUS, a condition where there is a presence of abnormal proteins (monoclonal proteins or M-proteins) in the blood, which may progress to multiple myeloma or related disorders over time. Amyloidosis: SPEP can help identify abnormal proteins associated with amyloidosis, a condition characterized by the deposition of abnormal proteins in various tissues and organs, leading to organ dysfunction. Waldenström Macroglobulinemia: In this condition, there is an overproduction of a specific type of abnormal protein called IgM. SPEP can help in detecting the presence of IgM in the blood. Chronic Inflammatory Conditions: Chronic inflammatory diseases such as rheumatoid arthritis, systemic lupus erythematosus...