scholarly journals A study on accuracy and precision of fluid volume measurements by nurses, patients and healthy persons in a clinical setting

Nursing Open ◽  
2022 ◽  
Author(s):  
Charlotte Frydenlund Michelsen ◽  
Morten Bo Søndergaard Svendsen ◽  
Marie Lommer Bagger ◽  
Hanne Konradsen
Keyword(s):  
Clinical Setting ◽  
Fluid Volume ◽  
Accuracy And Precision ◽  
Volume Measurements ◽  
Healthy Persons

Predictive Value of Amniotic Fluid Volume Measurements on Perinatal Outcome

1998 ◽  
Vol 45 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Ali Ergün ◽  
Vedat Atay ◽  
Recai Pabuçcu ◽  
İskender Başer ◽  
Namιk Kemal Duru ◽  
...  
Keyword(s):  
Amniotic Fluid ◽  
Predictive Value ◽  
Perinatal Outcome ◽  
Fluid Volume ◽  
Amniotic Fluid Volume ◽  
Volume Measurements

Fluid volume measurements in normal subjects to disclose body hydration during acute bed rest

2003 ◽  
Vol 35 (4) ◽  
pp. 457-465 ◽  
Author(s):  
Yan G. Zorbas ◽  
Vladimir L. Yarullin ◽  
Sergei D. Denogratov ◽  
Viktor A. Deogenov
Keyword(s):  
Bed Rest ◽  
Normal Subjects ◽  
Fluid Volume ◽  
Volume Measurements

Development of Guidelines for Accurate Measurement of Small Volume Parenteral Products Using Syringes

2019 ◽  
pp. 001857871987386
Author(s):  
Melanie A. Jordan ◽  
Dimpa Choksi ◽  
Kelsey Lombard ◽  
Lynn R. Patton
Keyword(s):  
Standard Deviation ◽  
Small Volume ◽  
Selection Methods ◽  
Accuracy And Precision ◽  
Relative Standard ◽  
Volume Measurements ◽  
The Mean ◽  
Precision And Accuracy ◽  
Parenteral Products ◽  
Sterile Product

Background: Syringes are commonly used in pharmacy compounding for the measurement of small volumes, especially in the preparation of sterile products for injection and infusion. However, there are no current official guidelines for the proper use of syringes in measuring small volumes. Objective: The purpose of this project was to determine the accuracy and precision of commercially available syringes in measuring small volumes during sterile product preparation to make recommendations for syringe size selection. Methods: To assess precision and accuracy of syringes, 3 separate investigators measured 5%, 10%, or 20% (n = 30 each) of the volume of a 1-, 3-, 5-, 10-, or 20-mL syringe with an attached 18G, 1½” needle by drawing sterile water for injection from a vial. Delivered volumes were measured gravimetrically using an electronic balance and converted to volume using the specific gravity of water (1.0). Accuracy is represented as the mean and standard deviation, while precision is represented as percent relative standard deviation. Differences were assessed using a 1-way analysis of variance with Bonferroni adjustments and significance set at P < .05. Results: Precision and accuracy were highly variable and often significantly ( P < .05) different compared to the theoretical volume delivered both within and between investigators. An increased likelihood of unacceptable error (>5%) was observed when less than 20% of the labeled capacity of a syringe was measured. Mean percent error ranged from 1.4% to 18.6%, despite manufacturer specification of ±5% accuracy, suggesting proper technique as a major factor in small-volume measurements. Conclusion: In addition to proper, validated training of syringe users, we recommend that users measure no less than 20% of the indicated volume of the syringe while choosing syringes as close as possible to the desired measurement. When possible, very small volumes should be diluted to meet the minimum volume of the smallest syringe available. Implementation of these recommendations will improve accurate dosing and, ultimately, patient safety.

Gestational sac fluid volume measurements in virtual reality

2011 ◽  
Vol 38 (5) ◽  
pp. 524-529 ◽  
Author(s):  
M. Rousian ◽  
A. H. J. Koning ◽  
W. C. Hop ◽  
P. J. van der Spek ◽  
N. Exalto ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Fluid Volume ◽  
Volume Measurements ◽  
Gestational Sac
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