• Published on: Dec 08, 2021
  • 3 minute read
  • By: Second Medic Expert

What Is A Calcium Blood Test?

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What is a calcium blood test?

The calcium blood test is a simple and popularly used test for determining one's "risk" for a variety of diseases.  A patient will typically have in-office phlebotomy to obtain blood, with lab technicians then taking the sample to check the level of calcium in the blood with point-of-care laboratory equipment.

Due to its accuracy and low cost, it is used extensively in clinical laboratories as a screening tool for numerous conditions related to metabolic disorders such as diabetes or hyperparathyroidism including but not limited to increased risk of bone fractures.

The 'calcium blood test is performed to determine the calcium concentration in the blood. The level of calcium varies with age, habitation location, pregnancy status, and medications being taken. Calcium plays an important role in muscular relaxation, nerve impulse transmission, regulating vital body activity, bone metabolism, and also enables teeth mineralization.

A calcium blood test checks for an imbalance in the levels of two types of calcium in the bloodstream. It measures the level of ionized and total serum calcium. If one exceeds the other, it can be a sign that there is a problem with absorbing or regulating all types of calcium.

In recent years new research has emerged suggesting that typical Western diets—which are high in sugar intake—both promote not only diabetes but also cardiovascular disease by causing chronic stress on our body’s ability to regulate glucose metabolism and to create insulin resistance, which triggers high levels of sugar-induced inflammation toxins (specifical fructose) that interfere with cellular metabolism and DNA signaling pathways.

A calcium blood test is a procedure that measures the amount of calcium in your blood. Depending on how high or low the levels are, this could mean many things. A high level of serum calcium indicates hypercalcemia. This usually occurs when there is excessive production of parathyroid hormone (PTH) by abnormal cells in your body, such as teratoma cancers and certain types of malignancies or polycythemia vera. The excess PTH increases renal clearance and resorption rates so you excrete more calcium than normal through urination, causing increased levels in the bloodstream. It may also occur with hyperparathyroidism (also called primary hyperparathyroidism), mineral bone disease.

The calcium blood test measures the amount of calcium in the blood and is used to screen for potential health problems such as kidney disease, intestinal bypass surgery, and pseudo fractures. A pseudo proximal fracture (also known as a false fracture) is a break on an X-ray that does not occur at or near a joint. Pseudo proximal fractures are more easily seen on bone films than plain films because they show calcification throughout the length of the bone where they usually do not appear on X-rays. Pseudo proximal fractures can be caused by any injury which pulls hard enough to allow quick formation of xanthotic new bone — 24 hours — just before healing occurs.

The estrogen hormone in girls and older women controls the level of calcium in their blood. Estrogen helps make more of the protein that keeps the body's calcium in the bones. It also tightens up muscle cells so they can't let go of this stored-up calcium when a bone is resorbed; instead, it stays around to keep bones strong. This means your child will need to eat about 2,500 mg per day - many times what she needs for bone health alone - just to maintain proper function!

High dietary intake early on encourages even stronger kidney lfts among 6-year-olds with type 1 diabetes. Testosterone levels also play a role because it regulates the production of an enzyme necessary for normal blood.

This blood test measures the level of calcium in someone's blood. The inverse correlation between bone density and fracture risk may have led to a common belief that increases in circulating levels of calcitriol, consistent with an increase in dietary intake, should be associated with a higher bone mineral content and a lower occurrence of fractures.

One way to measure calcium during a blood test is with the presence of parathyroid hormone (PTH) and vitamin D. If PTH levels are low, it may suggest the body does not need more calcium. Low or absent levels of parathyroid hormone (PTH) may indicate:

  • the bone marrow has been destroyed and is no longer synthesizing new red blood cells
  • high liver fibrosis interfering with the production of PTH by the thyroid gland
  • irreversible kidney damage or chronic renal failure

Lower than average levels for this exam would include goiter/low iodine intake, eating disorders such as anorexia nervosa, malabsorption such as celiac disease. Higher

The calcium blood test measures the level of calcium in the person's bloodstream. Certain heart or kidney problems can show up on this particular type of test, but it is more commonly used to detect hypercalcemia. Hypercalcemia is generally caused by cancer cells which are rapidly increasing in number and will often cause symptoms that include bone pain, nausea, vomiting, diarrhea, and confusion. It can also sometimes lead to arrhythmias or altered mental states.

A calcium blood test measures the level of calcium in the blood. This reveals how much protein you're breaking down to provide your tissues with extra energy because protein is broken down into its main component--glucose (or sugar).

Osteoporosis, osteopenia, or bone fracture prevention.

High levels of vitamin D deficiency.

Metabolic acidosis (not enough acid in bloodstream) .

Kidney failure.

Lactate buildup due to anaerobic metabolism. The body switches from aerobic metabolism for simple tasks to anaerobic metabolism when you run out of oxygen during intense exercise, causing lactate accumulation that can lead to fatigue.

Read Blog
 Seasonal change

common health problems during seasonal change

Seasonal changes bring relief from extreme weather, but they also pose unique challenges to human health. Transitions between summer, monsoon and winter often trigger a rise in illnesses. The body requires time to adapt to changing temperature, humidity and environmental conditions. During this adjustment period, immunity may weaken, making individuals more vulnerable to infections and other health problems.

Understanding common health problems during seasonal change helps individuals take preventive measures and seek timely care.

 

Why Seasonal Change Affects Health

Seasonal transitions impact the body in several ways:

  • sudden temperature fluctuations stress the immune system
     

  • humidity changes promote pathogen growth
     

  • allergens become more prevalent
     

  • lifestyle habits shift with weather
     

These factors collectively increase illness risk.

 

1. Respiratory Infections

Respiratory infections are among the most common health problems during seasonal change.

Causes

  • viral and bacterial growth in changing weather
     

  • increased indoor crowding
     

  • weakened respiratory defences
     

Symptoms

  • cough
     

  • sore throat
     

  • fever
     

  • nasal congestion
     

Children and elderly individuals are particularly vulnerable.

 

2. Common Cold and Flu

Seasonal transitions often coincide with cold and flu outbreaks.

Why They Increase

  • viruses survive longer in certain climates
     

  • immunity temporarily weakens
     

  • exposure increases during travel and gatherings
     

Symptoms

  • runny nose
     

  • sneezing
     

  • body aches
     

  • fatigue
     

 

3. Allergies

Seasonal allergies become prominent during weather shifts.

Common Triggers

  • pollen
     

  • dust
     

  • mould
     

  • air pollution
     

Symptoms

  • sneezing
     

  • itchy eyes
     

  • nasal congestion
     

  • throat irritation
     

Allergic symptoms can mimic infections and are often overlooked.

 

4. Digestive Problems

Digestive issues such as acidity, gas and indigestion are common during seasonal change.

Contributing Factors

  • altered eating patterns
     

  • contaminated food or water
     

  • reduced digestion efficiency
     

Symptoms

  • bloating
     

  • abdominal discomfort
     

  • nausea
     

 

5. Skin Problems

Changes in humidity and temperature affect skin health.

Common Issues

  • dryness
     

  • fungal infections
     

  • rashes
     

Poor skin barrier function increases infection risk.

 

6. Viral Fevers

Viral fevers are common during monsoon and post-monsoon periods.

Symptoms

  • sudden fever
     

  • body pain
     

  • headache
     

  • weakness
     

Early rest and hydration are essential.

 

7. Joint and Body Pain

Seasonal change may worsen joint stiffness and body aches, especially in individuals with arthritis.

Causes

  • cold weather
     

  • reduced physical activity
     

  • inflammation
     

 

Why Immunity Drops During Seasonal Change

Immunity may weaken due to:

  • temperature stress
     

  • vitamin deficiencies
     

  • poor sleep
     

  • increased stress
     

According to Indian Council of Medical Research data, immunity-related illnesses increase during transitional seasons.

 

Who Is Most at Risk?

High-risk groups include:

  • infants and children
     

  • elderly individuals
     

  • pregnant women
     

  • people with chronic diseases
     

  • individuals with low immunity
     

Extra care is required for these groups.
people with diabetes, heart disease,lung disease, kidney disease

 

Prevention of Seasonal Health Problems

Maintain Good Hygiene

Frequent handwashing reduces infection spread.

 

Support Immune Health

Balanced nutrition, hydration and adequate sleep strengthen immunity.

 

Stay Physically Active

Regular movement supports circulation and immune function.

 

Eat Fresh and Safe Food

Avoid stale or contaminated food during high-risk seasons.

 

Stay Vaccinated

Vaccination helps prevent seasonal flu and related complications.

 

Manage Allergens

Keep living spaces clean and well-ventilated.
mask use in crowded places, safe water, mosquito protection in monsoon.

 

Early Warning Signs Not to Ignore

Seek medical advice if experiencing:

  • persistent fever
     

  • breathing difficulty
     

  • severe weakness
     

  • worsening symptoms
     

Early intervention prevents complications.

 

Role of Preventive Healthcare

Preventive care focuses on:

  • early detection
     

  • risk reduction
     

  • long-term health protection
     

Seasonal health awareness is a key part of preventive medicine.

 

Long-Term Impact of Ignoring Seasonal Illness

Repeated seasonal illnesses may lead to:

  • chronic respiratory problems
     

  • weakened immunity
     

  • reduced quality of life
     

Prevention protects long-term health.

 

Conclusion

Common health problems during seasonal change include respiratory infections, colds, allergies, digestive issues and viral fevers. These conditions arise due to sudden weather changes, weakened immunity and increased exposure to pathogens. By understanding the causes and symptoms and adopting preventive measures such as good hygiene, balanced nutrition, adequate rest and timely medical care, individuals can significantly reduce seasonal illness risk. Seasonal transitions are inevitable, but proactive health practices ensure smoother adaptation and better wellbeing throughout the year.

 

References

  • Indian Council of Medical Research (ICMR) – Seasonal Disease Surveillance Report

  •  National Family Health Survey (NFHS-5) – Immunity and Morbidity Data

  • World Health Organization (WHO) – Seasonal Illness Prevention Guideline

  •  NITI Aayog – Preventive Healthcare and Climate Health Reports

  • Lancet – Climate Change and Seasonal Disease Patterns

  • Statista – Seasonal Illness Trends and Public Health Data

See all

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