Related Experiment Video
Updated: Jan 25, 2026
07:44
Measuring Microbial Mutation Rates with the Fluctuation Assay
Published on: November 28, 2019
24.8K
Fortuitous Identification of Fluctuating AV Block: A Case Report
Ian S deSouza1, Monisha Dilip1
1Department of Emergency Medicine, SUNY Downstate Medical Center, Kings County Hospital Center, Brooklyn, New York.
The Journal of Emergency Medicine
|May 11, 2019
Summary
Vagally mediated atrioventricular block (AVB), often overlooked, arises from increased parasympathetic tone. Emergency physicians must distinguish this from other AVB types to guide appropriate pacemaker decisions.
Area of Science:
- Cardiology
- Electrophysiology
- Internal Medicine
Background:
- Vagally mediated atrioventricular block (AVB) is associated with increased parasympathetic tone.
- This type of AVB is underreported and may be unrecognized.
- Increased vagal tone can precipitate AVB, particularly in susceptible individuals.
Observation:
- A case of vagally mediated AVB was identified via serial electrocardiography.
- The patient presented to the emergency department with symptoms of vomiting.
- The diagnosis was confirmed through continuous cardiac monitoring.
Findings:
- Vagally mediated AVB requires differentiation from other forms of AVB.
- Bradycardia-dependent AVB may necessitate pacemaker implantation.
- Asymptomatic vagally mediated AVB contraindicates pacemaker placement.
Implications:
- Emergency physicians must consider vagally mediated AVB in patients with bradycardia and increased vagal tone.
- Accurate diagnosis prevents unnecessary pacemaker implantation in asymptomatic patients.
- Symptomatic vagally mediated AVB may warrant intervention, but requires careful clinical assessment.
Related Concept Videos
01:24Data Reporting and Recording
5.4K
Reporting and recording are crucial in data documentation. The timely, thorough, and accurate documentation of facts is essential when recording patient data. Failure to record findings during an assessment or interpretation of a problem will result in loss of information and make the patient document unreliable. The reader is left with general impressions if the information is not specific. A recording is documenting data of the individual's health information in a traceable, secure, and...
5.4K
01:22Block Diagram Reduction
546
The process of deriving the transfer function of a control system often involves reducing its block diagram to a single block. This simplification can be achieved through a series of strategic operations, including relocating branch points and comparators. These operations preserve the overall function of the system while allowing for easier manipulation and combination of blocks.
The first step in this process is the identification and relocation of a branch point. A branch point, where a...
The first step in this process is the identification and relocation of a branch point. A branch point, where a...
546
01:25Types of Reports I: Hands-off Report
1.5K
A hand-off report, also known as a change-of-shift report, is a crucial nursing process that ensures the smooth transition of patient care responsibilities between nursing staff.
Following are the key components and categories of hand-off reports:
Purpose and Process:
Following are the key components and categories of hand-off reports:
Purpose and Process:
1.5K
01:25Elements of Block Diagrams
692
Block diagrams serve as a visual representation of the input-output relationships within a system. An illustrative example is a heating system, where the set temperature activates the furnace to warm the room to the desired level. Block diagrams are versatile, modeling linear systems through Laplace transform variables and nonlinear systems using time domain variables.
A block diagram typically includes essential elements such as comparators, blocks, and feedback loops. Each of these elements...
A block diagram typically includes essential elements such as comparators, blocks, and feedback loops. Each of these elements...
692
01:21Types of Reports II: Incident or Occurrence Report
1.2K
An Incident or Occurrence Report in a healthcare setting is a crucial document used to record any unexpected occurrence that may or may not have affected a patient, employee, or visitor. Such reports are critical to improving patient safety and include all details leading up to and including the event.
Purposes:
In the healthcare industry, reports play a crucial role in documenting incidents within an agency. The primary objective of these reports is to ensure patient safety, uphold the...
Purposes:
In the healthcare industry, reports play a crucial role in documenting incidents within an agency. The primary objective of these reports is to ensure patient safety, uphold the...
1.2K
01:26Types of Reports III: Telephone and Verbal Reports
1000
Telephone and Verbal Reports in healthcare settings are two communication methods for conveying therapeutic instructions from healthcare providers to nurses or other healthcare staff.
Here's an overview of each type:
Telephone Orders
Here's an overview of each type:
Telephone Orders
1000