Diagnosis of Aunt Betsy

Did the anesthesia really cause her death?

The victum/ crime scene

Aunt Betsy went into surgery to have her appendix removed early Saturday morning for what should have been a simple procedure, but mysteriously did not wake up. The anesthesia that the doctor used was left behind for further testing, our investigation decides if the anesthesiologist keeps his job and what really killed Aunt Betsy .

Our Investigation

The normal amount of anesthesia used to put patients under for surgery must be less than 40%.To test the amount of anesthesia we used the highly advanced technology of a Colorimeter to monitor the light received by the photocell as either an absorbance or a percent transmittance value. The amount of light that penetrates the solution and strikes the photocell is used to compute the absorbance of each solution. The concentration of the anesthesia solution is then determined by measuring its absorbance with the Colorimeter.

How to Make a Percent Solution

To make the solution to compare it to the anesthesia that the anesthesiologist used we first cleaned out the cuvettes and dropper, then made a 20% solution by filling the cuvette with the green dye mixture to the 2 milliliter mark. To finish making the solution we then added 8 milliliters.

The Result


The anethsia did not kill Aunt Betsy

From our results the amount of anesthesia that was given to Aunt Betsy was the perfect amount of 30% not too little to where she would have woken up and not too much to where she would not have woken up. Our theory to what may have caused her death is natural causes or her appendix burst and it was too late. The anesthesiologist can resume working at the hospital and the mystery is solved.