Related Experiment Video
Updated: Jan 20, 2026

Safety Precautions and Operating Procedures in an ABSL-4 Laboratory: 1. Biosafety Level 4 Suit Laboratory Suite Entry and Exit Procedures
Published on: October 3, 2016
Using Six Sigma to Reduce the Utilization of Continuous Observations (1: 1) for Safety Precautions
Katherine E Voetelink1, Heather B Trout, Teresa Murphy
1Author Affiliations: Lead Performance Improvement Advisor (Ms Voetelink), Operations Improvement; Assistant Nurse Manager (Ms Trout), Staffing for All Seasons; Manager of Nursing Resources and Operations (Ms Murphy), Director of Nursing Operations (Ms Rogers), Department of Nursing; Nurse Manager (Ms Harris) and Nurse Manager of Surgical Intensive Care Unit and Venous Access Team (Mr Ramagnano), Department of Surgical Nursing, Hospital of the University of Pennsylvania, Philadelphia.
Implementing a standardized weaning process and reassessment tool significantly reduced continuous observation (1:1) staffing by 25.6%, saving hospitals $142,000 annually and optimizing patient safety resource allocation.
Area of Science:
- Healthcare Management
- Patient Safety
- Process Improvement
Background:
- Continuous observation (1:1) for patient safety is resource-intensive due to variable needs.
- Inconsistent staffing for safety observation leads to hospital cost strain and resource allocation challenges.
Purpose of the Study:
- To optimize the assignment, monitoring, and discontinuation of safety 1:1 care for non-suicidal patients.
- To reduce the duration and cost associated with continuous patient observation.
Main Methods:
- A multidisciplinary team utilized Six Sigma methodologies to analyze and improve safety 1:1 care processes.
- Implemented a standardized weaning process and a 4-hour reassessment protocol with a behavior observation-tracking tool.
Main Results:
- Reduced average monthly safety 1:1 staffing hours by 25.6%.
- Achieved an estimated annual savings of $142,000 across six units.
- Integrated the observation tool and reassessment into the electronic medical record for enhanced tracking.
Conclusions:
- Standardized processes and tools effectively reduce continuous observation duration and associated costs.
- Optimized staffing for safety 1:1 care improves resource allocation and hospital financial performance.
- Electronic health record integration enhances the sustainability and efficiency of safety observation protocols.
Related Concept Videos
SN1 Reaction: Stereochemistry
In the first step of an SN1 reaction, the bond between the electrophilic carbon and the leaving group ionizes to generate the carbocation intermediate. The second step of the mechanism is the nucleophilic attack.
In the formed carbocation, the positively charged carbon is sp2 hybridized with a trigonal planar geometry. As all the three substituents lie on the same plane, a plane of symmetry for the...
SN1 Reaction: Kinetics
However, Sir Christopher Ingold and Edward D. Hughes, who studied the kinetics of various nucleophilic substitution reactions, noticed that a tertiary alkyl halide does undergo a nucleophilic substitution reaction in the presence of a weak nucleophile. While studying the substitution...
SN1 Reaction: Mechanism
Firstly, the haloalkane ionizes to generate a carbocation intermediate and a halide ion. This heterolytic cleavage is highly endothermic with large activation energy. The ionization of the substrate, facilitated by a...
Acidity of 1-Alkynes
The acidic strength of hydrocarbons follows the order: Alkynes > Alkenes > Alkanes. The strength of an acid is commonly expressed in units of pKa — the lower the pKa, the stronger the acid. Among the hydrocarbons, terminal alkynes have lower pKa values and are, therefore, more acidic. For example, the pKa values for ethane, ethene, and acetylene are 51, 44, and 25, respectively, as shown here.
Predicting Products: SN1 vs. SN2
With increased substitution on the alkyl halide,...
Preparation of 1° Amines: Gabriel Synthesis
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...

