Influence of Rapydan on Clinical Chemistry and Hematology Measurements
Status:
Completed
Trial end date:
2010-05-01
Target enrollment:
Participant gender:
Summary
There is an increasing awareness of the importance of treating procedure-related pain.
Patients undergoing vascular access procedures are often afraid of needles and the discomfort
associated with injections. This type of pain and/or fear can be stressful to patients. [1]
For prevention of the pain associated with these procedures, the hospital is using Rapydan
plasters. Rapydan consists out of two local anesthetics: lidocaine and tetracaïne. Rapydan
produces topical anesthesia after an application time of 30 minutes and is used in the
Martini Hospital for pain relieve by venipuncture and IV cannulation. The venous blood
draining the anaesthetized skin contains a higher blood concentration of the local
anesthetics than does venous blood in other parts of the body [2] Although the concentrations
of the local anesthetics are low in patients with normal skin, the question is whether the
presence of the local anesthetics which Rapydan contains might influence routine measurements
in clinical chemistry and hematology.