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Published on: May 22, 2022
3 minute read
By: Second Medic Expert

Understanding Creatinine Blood Test

A creatinine blood test is a test that measures the level of creatinine in your blood. Creatinine is a waste product that is produced by your muscles and filtered out by your kidneys. If your kidneys are not functioning properly, the level of creatinine in your blood will increase. The normal range for creatinine in adults is 0.6 to 1.3 mg/dL. A increase in the level of creatinine in your blood may be due to:

- Kidney disease

- Liver disease

- Muscle injury or illness

- Heart failure

- Eating large amounts of meat or tofu

- Taking certain medications, such as aspirin, ibuprofen, or some

The creatinine blood test is used to assess kidney function. Creatinine is a waste product that is produced by muscle metabolism and excreted by the kidneys. When the kidneys are not functioning properly, creatinine levels in the blood can increase. There are several reasons why your doctor may order a creatinine blood test. For example, if you have symptoms of kidney disease, such as fatigue, edema (swelling), or proteinuria (protein in the urine), your doctor may order a creatinine blood test to check for kidney impairment. Creatinine is a waste product that is produced by muscle metabolism and discarded by the kidneys. This test measures the level of creatinine in the blood. An increase in creatinine levels may indicate impaired kidney function.

There are several reasons why your doctor may order a creatinine blood test. Your results may be watched closely if you have a history of kidney disease, diabetes, or high blood pressure. This test may also be ordered if you are taking medications that can affect kidney function, such as certain antibiotics or contrast agents used for imaging studies. Creatinine is a waste product that is produced by muscle metabolism and discarded by the kidneys. This test measures the level of creatinine in the blood. An increase in creatinine levels may indicate impaired kidney function.

There are several reasons why your doctor may order a creatinine blood test. Your results may be watched closely if you have a history of kidney disease, diabetes, or high blood pressure. This test may also be ordered if you are taking medications that can affect kidney function, such as certain antibiotics or contrast agents used for imaging studies. Creatinine is a waste product that is produced by the muscle and filtered out by the kidney. The creatinine blood test measures the amount of creatinine in the blood. A high level of creatinine in the blood can indicate that the kidneys are not working properly.

The creatinine blood test is typically ordered as part of a kidney panel or chemistry profile, which includes other tests that evaluate kidney function. The liver also shares responsibility for filtering out wastes like creatinine, but most of the creatinine in the body comes from muscle activity, so it's a good marker for kidney function. Creatinine is a waste product that is produced by your muscles and filtered out by your kidneys. The level of creatinine in your blood can be a good indicator of how well your kidneys are functioning.

If you have kidney disease, your creatinine level will be higher than normal because your kidneys are not able to filter it out as effectively. The creatinine blood test can help to diagnose kidney disease and to monitor its progression. The creatinine blood test is used to assess kidney function. Creatinine is a waste product that is produced by muscle activity and filtered out of the blood by the kidneys. If the kidneys are not functioning properly, creatinine will build up in the blood. The creatinine blood test is a simple and quick test that can be done at your doctor’s office or at a lab. A small sample of blood will be taken from a vein in your arm and sent to a lab for analysis. The results of the test will usually be available within a few days.

Most people are familiar with the basic blood tests that are performed when you go for a physical, such as a cholesterol test or a blood sugar test. However, there is another important blood test that is often performed but may not be as well-known – the creatinine test. It is typically inspected in a blood sample to gauge kidney function. Your kidneys filter out waste products from your bloodstream andCreatinineahealthy level of creatinine should be promptly removed by your kidneys and excreted in urine. Thus, an elevated level of creatinine in the blood can be an early indicator of kidney disease.

Your creatinine blood test measures the level of creatinine in your blood. Creatinine is a waste product that's produced by your muscles and filtered out by your kidneys. A high level of creatinine in your blood can be a sign of kidney problems. There are a few different reasons why you might have an elevated creatinine level. One possibility is that you have a kidney infection or another type of kidney disease. Kidney disease can cause your kidneys to filter out less waste, which can lead to a buildup of creatinine in your blood. Another possibility is that you're taking certain medications that can increase creatinine levels, such as some diuretics or enzyme inhibitors.

A high level of creatinine in your blood may indicate that your kidneys aren't working properly. Your doctor may order a creatinine blood test if they suspect you have kidney disease or if you're taking medication that can affect kidney function. The test is also used to help monitor kidney function in people who have conditions that put them at risk for kidney problems, such as diabetes or high blood pressure.

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Asthma Symptoms in Adults: Early Signs, Triggers, and When to Seek Care

Asthma is often perceived as a childhood condition, but a significant number of cases develop or persist into adulthood. In India, adult asthma is increasingly recognised due to rising air pollution, occupational exposure and lifestyle-related risk factors. Unfortunately, asthma symptoms in adults are frequently misdiagnosed as recurrent infections, allergies or age-related breathlessness, leading to delayed treatment.

Understanding adult asthma symptoms is critical for early diagnosis, effective control and prevention of severe attacks.

What Is Asthma?

Asthma is a chronic inflammatory disease of the airways. In asthma, the airways become:

inflamed
narrow
overly sensitive to triggers

This leads to difficulty in breathing, especially during exposure to specific stimuli.

Why Adult Asthma Is Often Missed

Adult asthma symptoms may:

appear gradually
vary in severity
mimic common respiratory conditions

According to Indian Council of Medical Research and WHO data, many adults remain undiagnosed for years, increasing the risk of complications.

Common Asthma Symptoms in Adults

Wheezing

A high-pitched whistling sound while breathing, especially during exhalation, is a classic asthma sign.

Shortness of Breath

Adults with asthma often feel:

breathless during routine activities
difficulty taking deep breaths

This may worsen at night or early morning.

Chest Tightness

Many describe a sensation of pressure or tightness in the chest, which can be mistaken for heart-related issues.

Chronic Cough

A persistent cough, especially:

at night
early morning
after exercise

is a common but overlooked asthma symptom.

Symptoms That Worsen With Triggers

Asthma symptoms often intensify after exposure to specific triggers.

Air Pollution and Smoke

Urban pollution, vehicle emissions and indoor smoke significantly worsen asthma symptoms in adults.

Allergens

Dust mites, pollen, mould and pet dander are common triggers.

Respiratory Infections

Viral infections can trigger asthma flare-ups or reveal undiagnosed asthma.

Physical Activity

Exercise-induced asthma causes breathlessness and wheezing during or after physical exertion.

Weather Changes

Cold air, humidity and sudden temperature changes can aggravate symptoms.

Adult-Onset Asthma

Adult-onset asthma differs from childhood asthma.

Characteristics include:

onset after age 20–30
less association with childhood allergies
more persistent symptoms
higher likelihood of severe disease

Occupational exposure and hormonal changes contribute to adult-onset asthma.

Risk Factors for Asthma in Adults

Several factors increase asthma risk:

long-term exposure to pollution
smoking or passive smoking
occupational chemicals or dust
obesity
family history of asthma
chronic sinusitis or allergies

Women may experience asthma onset or worsening during hormonal changes.

When Asthma Symptoms Become Serious

Seek immediate medical attention if experiencing:

severe breathlessness
difficulty speaking in full sentences
bluish lips or fingertips
rapid worsening of symptoms
poor response to usual inhalers

These signs indicate a potentially life-threatening asthma attack.

How Adult Asthma Is Diagnosed

Diagnosis includes:

detailed symptom history
physical examination
lung function tests (spirometry)
response to bronchodilators

Early diagnosis improves long-term outcomes.

Impact of Untreated Asthma

Untreated asthma can lead to:

frequent attacks
reduced lung function
sleep disturbances
missed workdays
reduced quality of life

According to Lancet respiratory studies, uncontrolled asthma increases hospitalisation risk.

Managing Asthma Symptoms in Adults

Effective asthma management focuses on:

identifying and avoiding triggers
using prescribed inhalers correctly
monitoring symptoms regularly
maintaining follow-up care

Asthma action plans help patients recognise worsening symptoms early.

Role of Preventive Healthcare

Preventive healthcare helps:

detect asthma early
assess lung function
guide lifestyle modifications

Regular health checkups are especially important for individuals with respiratory symptoms or occupational exposure.

Lifestyle Measures That Support Asthma Control

Helpful practices include:

avoiding smoking
improving indoor air quality
wearing masks in polluted environments
maintaining healthy weight
regular, moderate exercise

Lifestyle support complements medical treatment.

Mental Health and Asthma

Stress and anxiety can worsen asthma symptoms.

Stress management:

reduces symptom frequency
improves medication response

Holistic care improves asthma outcomes.

Importance of Medication Adherence

Asthma medications work best when:

taken regularly as prescribed
inhaler technique is correct

Skipping treatment increases flare-up risk.

Long-Term Outlook for Adults With Asthma

With proper management:

symptoms are well controlled
severe attacks are preventable
normal activity levels are achievable

Most adults with asthma lead active, productive lives.

Conclusion

Asthma symptoms in adults are often subtle, variable and easily mistaken for common respiratory problems. Wheezing, breathlessness, chest tightness and chronic cough should not be ignored, especially when triggered by pollution, exercise or weather changes. Early diagnosis, trigger control and consistent treatment are essential to prevent severe attacks and preserve lung health. Recognising adult asthma early empowers individuals to manage symptoms effectively and maintain a good quality of life.

References

Indian Council of Medical Research (ICMR) – Respiratory Disease and Asthma Studies
World Health Organization (WHO) – Asthma Management and Prevention Guidelines
National Family Health Survey (NFHS-5) – Respiratory Health Indicators
Lancet Respiratory Medicine – Adult Asthma Outcomes and Management
NITI Aayog – Air Pollution and Respiratory Health Reports
Statista – Global Asthma Prevalence and Trends

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