Understanding RDW in Blood Test: A Comprehensive Guide

Know the Reason Behind Your Fever with a Blood Test

Fever is one of the most common symptoms experienced by people of all ages. It is not a disease  but a warning sign that the body is fighting an infection or responding to an underlying health issue. While occasional, mild fevers often resolve on their own, persistent or high-grade fever should never be ignored. Understanding the root cause of fever is crucial , and this is where a blood test plays a vital role.

Why Fever Occurs

Fever occurs when the body’s temperature rises above the normal range, usually in response to an infection. This rise in temperature is the immune system’s way of creating an environment less favourable for bacteria or viruses to survive. Common causes of fever include –

1. viral infections (such as flu or dengue), 
2. bacterial infections (such as typhoid or urinary tract infections), 
3. parasitic diseases (such as malaria), and 
4. inflammatory or autoimmune conditions. 
5. side effects of medication or a sign of more serious illnesses.

The Role of Blood Tests in Identifying the Cause

When a fever lasts more than a couple of days, or when its origin is unclear, a blood test becomes an important diagnostic tool. It helps doctors pinpoint the underlying cause, differentiate between bacterial and viral infections, and assess the severity of the illness.

Some common blood tests for fever diagnosis include:

• Complete Blood Count (CBC) – Evaluates the levels of red and white blood cells, helping detect infections, anaemia, or blood disorders.
• Blood Culture – Identifies bacteria or fungi in the blood, guiding doctors in selecting the right antibiotics.
• Malaria Parasite Test – Detects the presence of malaria-causing parasites.
• Dengue NS1 Antigen and Antibody Tests – Confirms dengue fever and determines its stage.
• Typhoid Tests (Widal or TyphiDot) – Diagnose typhoid fever caused by Salmonella bacteria.
• ESR and CRP Tests – Measure inflammation levels in the body, useful for detecting infections or autoimmune conditions.

Benefits of Early Diagnosis

Timely blood testing not only helps confirm the cause of fever but also ensures that the right treatment is started without delay. This prevents complications, reduces the duration of illness, and avoids unnecessary use of antibiotics in cases where they are not required. For example, if a blood test confirms a viral infection, supportive care may be sufficient; but if it points to a bacterial infection, the correct antibiotics can be prescribed immediately.

When to Seek Medical Help

You should consult a doctor and consider a blood test if your fever is high-grade (above 102°F), lasts for more than 3 days, is accompanied by severe symptoms like rash, persistent vomiting, breathing difficulties, chest pain, confusion, or if it occurs in infants, elderly individuals, or people with weakened immunity.

A fever should never be dismissed as “just a common symptom.” It is your body’s way of asking for  attention. Blood tests are the most reliable way to uncover the real cause, enabling your doctor to provide the most effective treatment. 

At Manipal TRUtest, we provide comprehensive fever panels with accurate results, doorstep sample collection, and NABL-accredited labs — helping you recover faster with the right care.

Don’t let an unexplained fever go unchecked. Book your Fever Blood Test Package with Manipal TRUtest today and take charge of your health.

Cholesterol Levels and What a Lipid Test Reveals

Cholesterol is a waxy, fat-like substance found in every cell of the human body. While it is essential for producing hormones, vitamin D, and substances that aid digestion, an excess of cholesterol in the bloodstream can pose serious health risks. Understanding your cholesterol levels through a lipid test is a crucial step in preventing heart disease, stroke, and other cardiovascular issues.

What Is Cholesterol?

Cholesterol is categorized into two main types: Low-Density Lipoprotein (LDL), often referred to as "bad" cholesterol, and High-Density Lipoprotein (HDL), known as "good" cholesterol. LDL carries cholesterol to your arteries, where it can build up and form plaques, narrowing the arteries and increasing the risk of heart attack and stroke. HDL, on the other hand, helps remove cholesterol from the bloodstream, transporting it back to the liver for excretion.

Another important component is Triglycerides, which are a type of fat found in your blood. When you eat more calories than your body needs, especially from sugar and fat, the excess is converted into triglycerides. High triglyceride levels, along with elevated LDL and low HDL, are linked to an increased risk of cardiovascular disease.

What Is a Lipid Test?

A lipid test, also known as a lipid profile or lipid panel, is a simple blood test that measures the levels of different fats in your blood. Typically, the test includes:

• Total Cholesterol: The overall amount of cholesterol in your blood.
• LDL Cholesterol: Often labelled as “bad” cholesterol because high levels can lead to plaque buildup.
• HDL Cholesterol: Known as “good” cholesterol as it helps remove LDL from the arteries.
• Triglycerides: Elevated levels can raise your risk of heart disease and may indicate metabolic syndrome or diabetes.

The test is usually performed after fasting for 9 to 12 hours, as food intake can temporarily influence lipid levels. Based on the results, your healthcare provider can assess your risk of cardiovascular disease and suggest lifestyle changes or medications if necessary.

Interpreting the Results

Normal lipid levels are typically defined as:

• Total Cholesterol: Less than 200 mg/dL
• LDL Cholesterol: Less than 100 mg/dL
• HDL Cholesterol: 60 mg/dL or higher (considered protective)
• Triglycerides: Less than 150 mg/dL

Borderline or high readings may signal the need for dietary adjustments, increased physical activity, weight management, or in some cases, medication like statins.

Importance of Regular Testing

Regular lipid testing is especially important for individuals over 40, those with a family history of heart disease, people with diabetes, obesity, or a sedentary lifestyle. Early detection of abnormal cholesterol levels can help you take proactive measures to protect your heart and overall health.

Monitoring cholesterol levels through a lipid profile test is a simple yet powerful tool in maintaining cardiovascular health. It offers valuable insights into your risk profile and can guide lifestyle modifications or medical interventions. By keeping cholesterol levels in check, you can significantly reduce your risk of heart disease and lead a healthier, longer life. Regular screening, a balanced diet, regular exercise, and stress management are key to keeping your heart strong and your cholesterol within a healthy range.

Take control of your heart health - test early, stay healthy.

Health Benefits of Blood Donation You Should Know

You may have seen health camps encouraging men and women of eligible ages to donate blood at least once a year. But have you ever wondered—is blood donation actually good for your health?

The answer is a resounding yes.

However, the primary motive of donating blood is to help someone in need, provide them a second chance at life. It is also surprisingly beneficial for the donor. From improving heart health to giving your body a gentle detox, regular blood donation is a simple act that offers powerful returns.

Benefits of blood donation

1. Natural cleanser: Donating blood acts as a natural body cleanser. It affects perfluoroalkyl levels and those of polyfluoroalkyl substances. It reduces skin-related disorders and encourages blood flow. It reduces acne and skin problems.

2. Improves cardiovascular health: Donating blood reduces the chances of cardiovascular issues and heart attacks. It reduces haemoglobin and iron amounts in the body, and blood pressure, and improves blood circulation.

3. Free health check-up: While donating blood at a health camp, you enjoy receiving free health checkups. Healthcare professionals understand your health vitals before the procedure. They test blood pressure and haemoglobin levels. You don’t have to pay for these checkups.

4. Promotes hair growth: After donation, the body produces new blood cells. It stimulates hair follicles while boosting new hair growth. 

5. Screening infections and diseases: Health professionals screen your body to identify infectious diseases. It is a mandatory step. They test blood for a variety of diseases, including HIV, virus, malaria, etc. 

6. Save lives: By donating blood, you get the opportunity to save precious lives. It includes cancer patients and those suffering from burns or traumatic injuries. You obtain their blessings.

What to do and avoid before and after blood donation?

• Have iron-rich food: Avoid fatty, unhealthy meals. They promote new blood cells.
• Pain relievers or blood thinners: Avoid them before donating blood. 
• Get sufficient sleep: Take rest before donating blood. Be relaxed and avoid panic on blood donation day.
• Avoid drinking and smoking: Practice this at least two days before donating blood, as it could increase blood pressure. Moreover, it might reduce the amount in the blood.
• Avoid straining yourself: Performing rigorous exercises after donating blood should be avoided. Do not consume alcohol, smoke, or drugs for a day.
• Rest: After donating blood, A healthcare professional will supervise you. Do not lift heavy weights or perform strenuous physical activities for about hours. 

Enjoy the selfless deed!