My son was recenlty admitted to hospital (aged 18 months) following weeks of what was suspected back to back viruses after starting childcare.  Blood cultures, urine and stool results were all negative - the only abnormalities were a raised ALP (around 1800) and raised CRP (around 50).  The paediatrician said that the raised ALP wasnt significant in isolation as it wasnt associated with other abnormal results - what would cause this marked rise? Thanks
What your pediatrician told you is correct. A raised alkaline phosphatase in the absence of other parameters like altered calcium and phosphorus levels in the blood do not imply anything. ALP is raised with rickets and other bone disorders, but if your son never had anything of that sort, stop worrying. The raised CRP only indicates an infection or inflammation in the body and has no long-term significance.