Measurement of Edema

A method for detecting preeclampsia in a patient, said method comprising:

• measuring sub-epidermal moisture (SEM) values using a SEM scanner, wherein the SEM scanner comprises one or more sensors and a processor, wherein the one or more sensors are configured to measure an electrical property of the local tissue of the patient;
• obtaining a first SEM value at a first location;
• obtaining a second SEM value at a second location, wherein said first location and said second location are corresponding locations on a patient's body;
• and
• determining that said patient has preeclampsia when said first SEM value and said second SEM value are both above a predetermined threshold and are also within a predetermined range of each other.

A method for detecting compartment syndrome at a first location of a patient's skin, the method comprising:

• measuring sub-epidermal moisture (SEM) values using a SEM scanner, wherein the SEM scanner comprises one or more sensors and a processor, wherein the one or more sensors are configured to measure an electrical property of the local tissue of the patient's skin;
• obtaining a first SEM value at said first location, wherein said first location is located in a first compartment of the patient's body;
• obtaining a second SEM value at a second location of the patient's skin, wherein said second location is located in a second compartment of the patient's body;
• and
• determining whether the difference between said first SEM value and said second SEM value exceeds a predetermined amount indicative of compartment syndrome.