Relationship Between Potassium Level in Venous Blood Samples Drawn and Heel Sticks In Infants and Newborns (PS)
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
|Official Title:||In Infants and Newborns, is There a Relation Between the Potassium Level in Blood Samples Drawn From a Vein and Those Drawn From a Heel Stick?|
- Potassium Measurements [ Time Frame: 0-30 minutes after start of surgery ] [ Designated as safety issue: Yes ]In this prospective study, we would like to evaluate whether there is a correlation between the potassium level in blood samples drawn from a vein and those drawn from a heel stick.
|Study Start Date:||March 2014|
|Study Completion Date:||March 2014|
|Primary Completion Date:||March 2014 (Final data collection date for primary outcome measure)|
No Intervention: potassium level capillary blood
Infants Less than or equal to 6 mos. of age. Comparing level of potassium in blood which was either drawn from a vein or from a skin stick' has not been included in any Arm/Group Descriptions.
Biological: potassium level capillary blood
potassium level capillary blood will be check through a small amout of blood was withdrawn from a vein or from a capillary stick.
This study is a prospective observational study which will take place at the Children's Memorial Hermann Hospital Operating Room.
After obtaining written informed consent from parents or guardians, infants and babies scheduled to have elective surgery under routine general anesthesia and are <6 months of age will be included in the study. After the baby receives routine general anesthesia, a small amount of blood, 0.5 ml, will be drawn from a vein when an I.V. is started for the surgery. The largest possible cannula will be placed whenever possible to decrease hemolysis. If a baby has a central line, the blood sample will be drawn from it. If a baby has an existing peripheral I.V., a blood sample will be drawn from the I.V. cannula only if blood is freely running, to avoid hemolysis.
Blood will be placed into a heparinized, 1 ml syringe for venous blood gas analysis. A second blood sample, 0.3 ml, will be drawn into a capillary pipette from a heel stick for capillary blood gas analysis. The heel will be properly sterilized, and a proper size lancet will be used. The same operator will be performing the heel stick in each case.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01349218
|United States, Texas|
|Memorial Hermann Hospital|
|Houston, Texas, United States, 77030|
|Principal Investigator:||Samia N Khalil, M.D.||Faculty|