Serum Calcium Test For Monitor Kidney Function and Calcium Levels

Serum Calcium Test For Monitor Kidney Function and Calcium Levels

The Serum Calcium Test is a blood test that measures the level of calcium in your bloodstream. It helps assess bone health, monitor kidney function, and detect disorders related to calcium levels in the body.


Serum Calcium Test

Here are the basic details for the Serum Calcium Test.

Also Known As Total Calcium Test, Blood Calcium Test, Calcium Blood Test, Serum Calcium, Serum Ca test, Serum Calcium Test, Sr. CAL
Type Blood Test
Purpose Checks calcium levels in the blood
Sample Type Blood Serum
Preparation No Special Preparation Required
Fasting No
Gender All
Age-Group Any
Normal Value 8.6 - 10.2 mg/dL
Reporting Time 1 - 2 Hours
Cost 150 - 250 INR*

*Price range may vary as per location, lab type, and procedure of lab test.

Serum Calcium Test Means

The Serum Calcium Test measures the level of calcium in the blood.

  • Normal calcium levels range from 8.6 to 10.2 milligrams per deciliter (mg/dL).
  • High calcium levels (hypercalcemia) may indicate hyperparathyroidism, cancer, or vitamin D toxicity.
  • Low calcium levels (hypocalcemia) can be caused by hypoparathyroidism, kidney disease, or vitamin D deficiency.
  • The test helps diagnose and monitor conditions related to calcium balance in the body.


Serum Calcium Test Purpose

Here is the basic purpose of the Serum Calcium Test.

  • Assess calcium levels in the blood.
  • Evaluate bone health and calcium metabolism.
  • Monitor kidney function and parathyroid gland activity.
  • Detect and diagnose conditions related to calcium imbalance.
  • Aid in the management and treatment of calcium-related disorders.


Serum Calcium Test: Price, Normal Range, Result


Serum Calcium Test Preparation

Here's the Serum Calcium Test preparation before, during, and after the test.


Before Test

  • Follow any instructions given by your healthcare provider, such as fasting requirements or medication restrictions.
  • Inform your healthcare provider about any supplements or medications you are currently taking.


During Test

  • A healthcare professional will draw a blood sample from a vein, typically in your arm.
  • Relax and cooperate during the blood draw process.


After Test

  • Apply pressure to the puncture site with a cotton ball or gauze to stop any bleeding.
  • If necessary, a bandage may be applied to the puncture site.
  • You can resume your normal activities and diet unless instructed otherwise by your healthcare provider.


Serum Calcium Test Procedure

Here is the basic Serum Calcium Test procedure.

  • Clean the arm, insert the needle, draw blood, and send for testing.


Serum Calcium Test Results

Here's how to interpret Serum Calcium Test results.

  • Normal calcium levels typically fall within the range of 8.6 to 10.2 mg/dL.
  • Higher calcium levels (hypercalcemia) may indicate hyperparathyroidism, cancer, or vitamin D toxicity.
  • Lower calcium levels (hypocalcemia) can be caused by hypoparathyroidism, kidney disease, or vitamin D deficiency.
  • It's important to consult with a healthcare professional to accurately interpret your result.


Serum Calcium Test Report

Serum Calcium Test Report

Serum Calcium Test Report PDF


Serum Calcium Test Normal Range

Here's the normal range for Serum Calcium Test results.

Serum Calcium Test Normal range
Calcium Level 8.6 - 10.2 mg/dL


Serum Calcium Test Interpretation

Here's an example of Serum Calcium Test interpretation.

Calcium Level  Interpretation
Below 8.6 mg/dL Low calcium level (hypocalcemia)
8.6 - 10.2 mg/dL Normal range
Above 10.2 mg/dL High calcium level (hypercalcemia)


Serum Calcium Test High Levels

Here are the potential causes of high calcium levels (hypercalcemia).

High Calcium Levels Possible Causes
Hyperparathyroidism Overactive parathyroid glands
Cancer Certain types of cancer, such as lung or breast cancer
Vitamin D toxicity Excessive intake of vitamin D
Hyperthyroidism Overactive thyroid gland
Prolonged immobilization Long periods of inactivity or immobility


Serum Calcium Test Low Levels

Here are the potential causes of low calcium levels (hypocalcemia).

Low Calcium Levels Possible Causes
Hypoparathyroidism Underactive parathyroid glands
Kidney disease Impaired kidney function
Vitamin D deficiency Inadequate intake or absorption of vitamin D
Malabsorption Inability to absorb calcium from the digestive tract
Hypoalbuminemia Low levels of albumin in the blood


Specimen Requirements For Serum Calcium Test

Here are the specimen requirements for the Serum Calcium Test.

Specimen Blood Serum
Volume 5-10 ml
Container Red Top Serum separator tube


Serum Calcium Test is Safe?

The Serum Calcium Test is generally considered safe and poses minimal risk.

  • It is a routine blood test that involves a standard blood draw procedure, which carries a low risk of complications such as infection or excessive bleeding.


When Do You Get Serum Calcium Test Results?

The turnaround time for Serum Calcium Test results can vary depending on the laboratory and testing facility.

  • Typically, results are available within a 1 - 2 hours, and you can inquire about the specific timeline from your healthcare provider or the testing facility


Serum Calcium Test Limitation

Here are some possible limitations of the Serum Calcium Test.

  • Dietary intake can affect serum calcium levels.
  • Other factors like medications or medical conditions can influence results.
  • Test measures total calcium and not ionized calcium.
  • Interference from certain substances can impact accuracy.
  • Clinical context is crucial for the interpretation of results.


Serum Calcium Test Risk Factors

Here is the potential risk factor of the Serum Calcium Test.

  • Advanced age is a risk factor for abnormal serum calcium levels.
  • Certain medical conditions like hyperparathyroidism or kidney disease can increase the risk.
  • Taking medications such as diuretics or corticosteroids can affect calcium levels.


Doctor Recommendations After Serum Calcium Test Result

Here are Doctor recommendations or consult a specialist after Serum Calcium Test.

Serum Calcium Test Results Doctor to Visit Reason
High Endocrinologist Hypercalcemia or underlying conditions
Normal General Practitioner Routine monitoring or general health
Low Endocrinologist Hypocalcemia or underlying conditions


Serum Calcium Test Price

Here are the estimated Serum Calcium Test Price in India with top different cities:

City Price Range (INR)*
Mumbai 150 - 250
New Delhi 150 - 200
Bangalore 150 - 200
Hyderabad 150 - 250
Kolkata 150 - 250
Pune 150 - 200
Lucknow 150 - 250
Noida 150 - 200
Surat 150 - 250
Gurugram 150 - 250
Patna 150 - 200
Chennai 150 - 250
Jaipur 150 - 200
Ahmedabad 150 - 250

*Prices are approximate and vary depending on a specific laboratory or healthcare facility.



Overall, Serum Calcium Test is a safe and commonly performed blood test that measures calcium levels, helping to assess bone health, monitor kidney function, and detect abnormalities related to calcium metabolism.  Also check Drlogy Test for detailed information about all medical tests for patients, doctors, scholers and medical students.



  • Hypercalcaemia- Wikipedia [1].
  • Serum Calcium- NIH [2].


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Serum Calcium Test FAQ

Why is Serum Calcium low?

Low Serum Calcium levels, known as hypocalcemia, can occur due to various factors. Common causes include vitamin D deficiency, hypoparathyroidism (underactive parathyroid glands), certain medications (such as bisphosphonates or antiepileptic drugs), kidney disease, malabsorption disorders, pancreatitis, and certain types of cancers. Additionally, low levels of albumin (a protein that binds to Calcium) can affect the measured Serum Calcium levels. Hypocalcemia can lead to symptoms like muscle cramps, numbness, tingling, and can have serious effects on the cardiovascular and nervous systems. It is important to identify and address the underlying cause of low Calcium levels for appropriate treatment.

What if Serum Calcium is high?

If Serum Calcium levels are high (hypercalcemia), it is important to identify the underlying cause and address it accordingly. Hypercalcemia can be caused by various factors, including overactive parathyroid glands, certain cancers, excessive vitamin D intake, or underlying medical conditions. Treatment options may include addressing the underlying cause, such as surgery for parathyroid disorders or treating the cancer, as well as medication, fluid administration, and lifestyle modifications to lower Calcium levels. It is essential to work closely with a healthcare professional to determine the appropriate management plan and monitor Calcium levels regularly to prevent complications associated with high Calcium.

Is fasting required for Serum Calcium test?

Generally, fasting is not required for a Serum Calcium test. Routine blood tests, including the measurement of Serum Calcium levels, can typically be performed without fasting. However, it is advisable to follow the specific instructions provided by your healthcare provider or the laboratory where the test will be conducted. In some cases, they may provide specific guidelines regarding fasting or other dietary restrictions before the test. If fasting is necessary, you will be informed beforehand to ensure accurate test results.

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