Growth Retardation Blood Test

What is Growth Retardation?

Growth retardation, also known as failure to thrive, is a condition where a child's growth rate falls significantly below expected patterns for their age and sex. It is caused by nutritional deficiencies, chronic diseases, hormonal imbalances, genetic disorders, or inadequate caloric intake affecting cellular growth and tissue development. The Vitamin B2 (Riboflavin) test is the most important test for diagnosing nutritional causes of growth retardation because it measures essential nutrients required for energy metabolism and cellular growth processes.

RECOMMENDED TEST Vitamin B2 (Riboflavin)
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What causes growth retardation?

Growth retardation is caused by nutritional deficiencies, chronic diseases, hormonal disorders, genetic conditions, or inadequate caloric intake that prevent normal cellular development. Vitamin B2 (riboflavin) deficiency is a common nutritional cause, as this essential vitamin powers energy metabolism and tissue repair processes critical for childhood growth. Other causes include malabsorption disorders, thyroid hormone deficiencies, growth hormone insufficiency, celiac disease, and chronic infections that divert the body's resources away from normal growth processes.

What is the best test for growth retardation?

The Vitamin B2 (Riboflavin) test is the most important test for growth retardation because it detects deficiencies in this essential nutrient required for cellular energy production and tissue repair. When riboflavin levels are low, children cannot properly metabolize nutrients for growth, leading to stunted development and poor weight gain. This test is especially critical for infants and young children experiencing unexplained growth delays, as addressing vitamin B2 deficiency can restore normal growth trajectories when caught early.

When should I get tested for growth retardation?

You should get tested if your child consistently falls below growth curve percentiles, shows poor weight gain over several months, appears significantly smaller than peers of the same age, experiences developmental delays alongside physical growth issues, or has a diet limited in dairy products, eggs, and green vegetables. Testing is especially important if your child shows signs of malnutrition like fatigue, mouth sores, skin problems, or if they have chronic digestive issues that may impair nutrient absorption.

What are the symptoms of growth retardation?
Growth retardation symptoms include height and weight measurements consistently below the 3rd percentile for age, failure to gain weight at expected rates, delayed developmental milestones like sitting or walking, decreased muscle mass and subcutaneous fat, and appearing noticeably smaller than age-matched peers. Children may also show signs of specific nutrient deficiencies including fatigue, pale skin, brittle hair, mouth sores, poor wound healing, frequent infections, and decreased energy levels that affect play and activity.
Who is at risk for growth retardation?
Children at highest risk for growth retardation include premature infants, those with chronic diseases like celiac disease or inflammatory bowel disease, children from families experiencing food insecurity, those with feeding difficulties or extremely picky eating habits, and infants with malabsorption disorders. Additionally, children with untreated hormonal conditions like hypothyroidism or growth hormone deficiency, those on restrictive diets without proper supplementation, and children experiencing chronic stress or neglect face elevated risk for growth delays and failure to thrive.
What happens if growth retardation is left untreated?
Untreated growth retardation leads to permanent short stature, delayed puberty, weakened immune function with increased infection risk, cognitive and developmental delays, poor bone density increasing fracture risk, and decreased muscle mass affecting physical capabilities. Children may experience learning difficulties, behavioral problems, and social challenges due to appearing younger than peers. Long-term consequences include reduced adult height potential, decreased organ function, higher risk of chronic diseases in adulthood, and psychological impacts from developmental differences that become increasingly difficult to reverse as time passes.
Can growth retardation be diagnosed with a blood test?
Growth retardation cannot be diagnosed with a single blood test, but blood work is essential for identifying underlying causes contributing to poor growth. Blood tests measure critical nutrients like Vitamin B2, iron, zinc, and proteins, check hormone levels including thyroid function and growth hormone, detect celiac disease or other malabsorption conditions, and identify chronic infections or inflammatory conditions affecting growth. These tests work alongside growth measurements, medical history, and physical examination to create a complete picture of factors preventing normal development.
How is growth retardation treated?
Growth retardation treatment addresses the underlying cause and typically includes nutritional supplementation with deficient vitamins and minerals like Vitamin B2, dietary modifications to increase caloric intake with nutrient-dense foods, treatment of underlying medical conditions such as celiac disease or infections, and hormone replacement therapy when hormonal deficiencies exist. Treatment may involve working with pediatric nutritionists to develop feeding plans, occupational therapy for children with feeding difficulties, and regular growth monitoring to assess treatment effectiveness and adjust interventions as needed.
How can I prevent growth retardation?
Prevent growth retardation by ensuring adequate nutrition with a balanced diet rich in proteins, healthy fats, fruits, vegetables, whole grains, and dairy products containing essential vitamins like B2. Breastfeed infants when possible or use fortified formula, introduce age-appropriate solid foods on schedule, schedule regular pediatric checkups to monitor growth patterns, address feeding difficulties early with professional support, and promptly treat any chronic illnesses or digestive problems. Maintain a nurturing, low-stress environment and ensure adequate sleep, as emotional well-being significantly impacts childhood growth and development.
What natural remedies help with growth retardation?
Natural approaches to support healthy growth include incorporating Vitamin B2-rich foods like eggs, dairy products, almonds, spinach, and fortified cereals into daily meals, ensuring adequate protein intake from lean meats, fish, beans, and legumes, and providing zinc-rich foods such as pumpkin seeds and whole grains. Encourage regular physical activity and outdoor play to stimulate appetite and bone development, establish consistent meal and sleep schedules, reduce processed foods and empty calories, and create positive, stress-free mealtimes. While these natural strategies support growth, they complement rather than replace medical evaluation and treatment for diagnosed growth retardation.
How’s this work?
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Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
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  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
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What this means

Your testosterone levels are slightly below the optimal range. While this is not necessarily cause for concern, it may contribute to occasional fatigue, reduced motivation, or lower muscle mass over time.

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* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.

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Vitamin B2 (Riboflavin)
Google reviews 505 reviews
$119 $93
What's included
Fast & easy, results by email & SMS
No need to visit a doctor
Private & confidential
No insurance needed
Results explained
No extra fees paid at the lab

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