3] Rudy suggests a carpenter's level may be helpful for accurate placement.
Although most authors used the term "level," only one article provided recommendations regarding a specific levelling tool - the carpenter's level.
Does the use of a carpenter's level or a laser levelling device improve accuracy of levelling intraventricular drainage collection systems?
Operational Definitions Accurately: Within 2 centimeters of identified or standard zero point Ventricular drain Codman II extraventricular drain collection system: collection system Visual checks: Any technique that does not involve the use of a carpenter's level or laser levelling device; may include use of drainage system tubing, pens, nurse's arm, etc.
The two researchers checked the accuracy of the levelling of the three drainage collection systems using a carpenter's level and a set square.
In the second study, a different group of participants (N = 31) was asked to accurately level the drain using the carpenter's level and the laser levelling device (Fig 1).
In the first three trials of Part 2, the participant was asked to use the supplied carpenter's level to level the system (standard practice in the study hospital).
Accuracy of Placement of Collection System Using Visual Carpenter's Level or Laser Levelling Devices Visual Carpenter's Laser Levelling Level Device Mean Variance from zero point (cm) 4.