Gastrointestinal infections are illnesses affecting the digestive tract that cause symptoms like diarrhea, vomiting, abdominal pain, and fever. They are caused by bacteria such as Salmonella, E. coli, and Campylobacter, viruses like norovirus and rotavirus, or parasites including Giardia and Cryptosporidium. The Alkaline Phosphatase Isoenzymes test is the most important blood test for assessing intestinal damage and inflammation caused by gastrointestinal infections.
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Gastrointestinal infections are caused by bacteria, viruses, or parasites that invade your digestive system. Common bacterial culprits include Salmonella, E. coli, Campylobacter, and Shigella, often transmitted through contaminated food or water. Viral causes include norovirus, rotavirus, and adenovirus, which spread easily from person to person through close contact or contaminated surfaces. Parasitic infections from organisms like Giardia lamblia and Cryptosporidium can result from drinking untreated water or poor hygiene practices.
The Alkaline Phosphatase Isoenzymes test is the most important blood test for gastrointestinal infections because it detects elevated intestinal enzymes that indicate inflammation or damage to your intestinal lining. When bacteria, viruses, or parasites attack your digestive tract, they cause cellular damage that releases these specific enzymes into your bloodstream. While stool cultures, antigen tests, and PCR testing identify the specific infectious organism, the alkaline phosphatase isoenzymes test helps your healthcare provider assess how severely the infection has affected your intestines and monitor whether treatment is working. This test is particularly valuable for tracking recovery and detecting complications that might not be visible through stool testing alone.
You should get tested if you experience severe or persistent diarrhea lasting more than three days, bloody stools, high fever above 102°F, signs of dehydration like dizziness or decreased urination, or severe abdominal cramping. Testing is especially important if you recently traveled internationally, ate at a place where others got sick, or have a weakened immune system. You should also consider testing if you work in food service or healthcare, as confirming an infection helps prevent spreading illness to vulnerable people.
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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.
Recommended actions
Increase resistance or strength training
Prioritize 7–8 hours of quality sleep per night, try to reduce stress
Include more zinc- and magnesium-rich foods (like shellfish, beef, pumpkin seeds, spinach)
Consider retesting in 3–6 months
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