I mean talking about bloodwork is not the most exciting thing- I know this, but it definitely is something that should be discussed! I decided I’d write this blog post because I am due for my annual lab work!

The specific bloodwork and tests you should have can vary depending on the type of weight loss surgery you’ve undergone (e.g., gastric bypass, gastric sleeve, gastric banding) and your individual health needs. It’s essential to consult with your healthcare team, including your bariatric surgeon and primary care physician, to determine the appropriate post-surgery monitoring and blood tests for your situation.

Disclaimer: This blog provides general information and discussions about health and related subjects. The information and other content provided in this blog, website or in any linked materials are not intended and should not be considered, or used as a substitute for, medical advice, diagnosis or treatment. This blog does not constitute the practice of any medical, nursing or other professional healthcare advice, diagnosis or treatment.

How Often Should Bloodwork Be Done After Weight Loss Surgery?

Well, the short answer is… it depends on the person and the type of weight loss surgery that they have had! The American Society for Metabolic and Bariatric Surgery (ASMBS) recommends postoperative blood testing every 3 months for the first year, every 6 months for the second year, and annually thereafter regardless of the type of bariatric procedure performed. The Somerset NHS Foundation Trust recommends every 3 months in the first year, yearly thereafter for full blood count, urea and electrolytes, phosphate and magnesium, liver function tests, ferritin, and folate. UCSF Health recommends blood work three, six, and 12 months after surgery, then annually thereafter. 

What are the Potential Risks of Not Monitoring Bloodwork After Bariatric Surgery?

Regular monitoring of blood work after bariatric surgery is important to detect and correct nutritional deficiencies and other health issues. The potential risks of not monitoring blood work after bariatric surgery include:

• Nutritional deficiencies: Bariatric surgery can lead to malabsorption of nutrients, which can result in deficiencies of vitamins and minerals such as vitamin B12, iron, calcium, and vitamin D. These deficiencies can cause a range of health problems, including anemia, osteoporosis, and nerve damage.
• Complications: Rapid weight loss after bariatric surgery can increase the risk of complications such as cholelithiasis (gallstones), enteric hyperoxaluria, and dumping syndrome.
• Hypoglycemia: Some patients may experience hypoglycemia after bariatric surgery, which can cause symptoms such as dizziness, visual disturbances, syncope, and seizures2.
• Increased healthcare costs: Frequent and comprehensive lab testing after bariatric surgery can be costly, but not monitoring blood work can lead to more serious health issues and higher healthcare costs in the long run.

What are the Common Blood Tests that are Recommended After Weight Loss Surgery?

Complete Blood Count (CBC):

This test assesses your overall health and screens for a variety of disorders, including anemia and infection.

Comprehensive Metabolic Panel (CMP):

This panel measures glucose levels, electrolyte balance, kidney function, and liver function. It includes tests such as blood glucose, electrolytes, liver enzymes, and kidney function tests.

Lipid Profile:

This measures cholesterol levels, including total cholesterol, LDL (low-density lipoprotein), HDL (high-density lipoprotein), and triglycerides. Monitoring lipid levels is essential for cardiovascular health.

Vitamin and Mineral Levels:

It’s crucial to monitor levels of essential vitamins and minerals that may be deficient after weight loss surgery, such as:

   – Vitamin B12

   – Vitamin D

   – Folate

   – Iron

   – Calcium

Thyroid Function Tests:

Evaluating thyroid hormone levels (TSH, T3, T4) is important to assess thyroid function, as weight loss surgery can affect thyroid hormone absorption and metabolism.

Hemoglobin A1c (HbA1c):

This test measures average blood sugar levels over the past 2-3 months and is important for monitoring diabetes control and risk.

Protein Levels:

Protein is crucial for healing and maintaining muscle mass. Monitoring protein levels helps ensure adequate intake and absorption.

Ferritin:

Ferritin levels are assessed to check for iron stores in the body, as iron deficiency is common after weight loss surgery.

Remember getting your lab work done is an important part to your overall health and wellness! Don’t skip it!