Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
Blood pressure on kids varies by their weight, height, age and sex. The normal ranges for a boy of 12 years old are systolic pressure between 119 and 127 and diastolic pressure between 79 and 83. As, I see the values 130/90 are only a little bit higher than normal.
For
high blood pressure the analysis that need to be done are basic metabolic panel that includes sodium, potassium, chloride, calcium, urea nitrogen, glucose,
creatinine, carbon dioxide, also urinary free
cortisol, renin, thyroid screening, urinary meta nephrons,
urinalysis.
What analysis has the boy done? Better
consult a pediatrician.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Emilda Belortaja