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Related Concept Videos

Instrument Calibration01:12

Instrument Calibration

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Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
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Instrumentation Amplifier01:25

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An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
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Instrument Transformers01:23

Instrument Transformers

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Instrument transformers, comprising voltage transformers (VTs) and current transformers (CTs), play crucial roles in power substations by providing isolated replicas of current or voltage for measurement and protection purposes. Voltage transformers reduce the primary voltage to levels suitable for relay operation and measurement, while current transformers scale down the primary current. The primary winding of a current transformer often consists of a single turn, achieved by threading the...
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Uncertainty in Measurement: Reading Instruments02:46

Uncertainty in Measurement: Reading Instruments

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Counting is the type of measurement that is free from uncertainty, provided the number of objects being counted does not change during the process. Such measurements result in exact numbers. By counting the eggs in a carton, for instance, one can determine exactly how many eggs are there in the carton. Similarly, the numbers of defined quantities are also exact. For example, 1 foot is exactly 12 inches, 1 inch is exactly 2.54 centimeters, and 1 gram is exactly 0.001 kilograms. Quantities...
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Capillary Electrophoresis: Instrumentation01:20

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Capillary electrophoresis instrumentation typically consists of several key components. A high-voltage power supply generates the electric field necessary for the separation by connecting to an anode (the positively charged electrode) and a cathode (the negatively charged electrode) located in buffer reservoirs at each end of the capillary tube. The system includes a sample vial, a fused silica capillary tube coated with polyimide for mechanical strength through which the sample components...
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Fluorescence and Phosphorescence: Instrumentation01:25

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Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
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A Stainless Protocol for High Quality RNA Isolation from Laser Capture Microdissected Purkinje Cells in the Human Post-Mortem Cerebellum
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Post-Mortem Examination as a Quality Improvement Instrument.

Christian Wittekind1, Tanja Gradistanac

  • 1Institute of Pathology, Leipzig University Hospital.

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PubMed
Summary
This summary is machine-generated.

Autopsies are vital for medical quality assurance, revealing significant diagnostic discrepancies. Despite declining rates, post-mortem examinations remain crucial for patient safety and improving medical practice.

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Area of Science:

  • Medical Quality Assurance
  • Pathology
  • Diagnostic Accuracy

Background:

  • Autopsy rates have been declining globally.
  • The role of post-mortem examinations in modern medicine requires evaluation.

Purpose of the Study:

  • To review the literature on the role of autopsies as a quality assurance instrument.

Main Methods:

  • Selective literature search on autopsies and quality assurance.

Main Results:

  • Studies show 10-40% discrepancy between pre- and post-mortem diagnoses.
  • Goldman I erroneous diagnoses range from 2.4% to 10.7%.
  • Advanced post-mortem imaging does not yet replace traditional autopsy for pathogenetic classification.

Conclusions:

  • Autopsies are essential for medical quality assurance.
  • Standardizing autopsy performance and reporting can enhance data utilization.