Items starting with R

Reference lab will provide information.

From 1/3/18 renin samples are analysed using the IDS iSYS direct renin mass immunoassay which will use the following reference ranges:

Ambulatory:  Female: 6.1 – 62.7 mIU/L,  Male: 9.0 – 103 mIU/L

Supine: 4.2 – 59.7 mIU/L

For interpretation of the aldosterone:renin ratio in the context of hypertension please see Figure 1 in Primary Aldosteronism: An Endocrine Society Clinical Practice Guideline | The Journal of Clinical Endocrinology & Metabolism | Oxford Academic. 

(Endocrine guidelines on the investigation of Conns https://doi.org/10.1210/jc.2015-4061)

The Aldosterone/Renin ratio cut-off that we are providing is a guide only and not a diagnostic test and the ratio should be interpreted, cautiously, in conjunction with relevant clinical information and medications that may affect the ratio.

Therapeutic concentrations of risperidone range between 10 and 90 μg/L, and the total sum of risperidone and 9-hydroxyrisperidone range between 10 and 100 μg/L.