collection, including any difficulty doing soNormal values[edit]Referenceranges for bloodtests of plasma renin activity can be given both in mass and in international units (μIU/mL or equivalently mIU/L, improperly shown as μU/mL or U/L, confusing mcU/mL used where Greek μ not available), with the former being roughly convertible to the latter by multiplying with 11.2.[3] The following table gives
] Referenceranges for bloodtests, comparing blood content of bilirubin (shown in blue near horizontal center at around 3 mg/L and 3 μmol/L, scroll to the right to view) with other constituents[42]Hyperbilirubinemia[edit]Hyperbilirubinemia is a higher-than-normal level of bilirubin in the blood. For adults, this is any level above 170 μmol/l and for newborns 340 μmol/l and critical 425 μmol/l.[citation
will leave the bones and may give rise tosecondary hyperparathyroidism, which is a response by the body to increase serum calcium levels.[51] The body does this by increasing uptake of calcium by the kidneys and continuing to take calcium away from the bones.[51] If prolonged, this may lead to osteoporosis in adults and rickets in children.[51]Diagnosis[edit]See also: Referenceranges for bloodtests
: Referenceranges for bloodtests § Vitamins, and Hypervitaminosis D § Ethnic differences Global vitamin D serum levels among adults (nmol/L).[153][154]> 7550-7425-49Recommendations on recommended 25(OH)D serum levels vary across authorities, and vary based on factors like age.[2] US labs generally report 25(OH)D levels in ng/mL.[155] Other countries often use nmol/L.[155] Oneng/mL is approximately equal
.[149][158]Serum levels[edit]Further information: Referenceranges for bloodtests § VitaminsRange Status Notes >400 pg/ml Optimal May indicate optimal levels of vitamin B12; the deficiency may not be present 300–200 pg/ml Borderline deficiency Other tests may be needed