Describe Lowenberg's Test (FE for Mineral Balance).
First, ask the client if they have any contraindications: Phlebitis, edema, thrombosis, vascular or any other circulation problems in the legs.
With elderly or frail clients, do not inflate above 180mm.
With the client sitting on the edge of the table place the BP cuff around the largest portion of the calf of the leg. Instruct the client to advise you when they feel the steady ONSET of a cramp. Inflate the BP cuff slowly with a smooth needle. Once the client’s threshold is reached, deflate the cuff quickly.
Wait 30 seconds (so that blood can profuse the tissue) and repeat the test
on the same leg. You are attempting to reach 240 without cramping.
- 150mm = Very Deficient
- <200 = Deficient
- >200 = Sufficient;
- >240 = Optimal
NOTE: Clients who are hyperadrenic/fast oxidizers/highly sympathetic can skew this test.