Related Experiment Videos

Antibiotic timing and errors in diagnosing pneumonia

James A Welker1, Michelle Huston, Jack D McCue

  • 1Department of Medicine, University of Maryland School of Medicine, and Franklin Square Clinical Research Center, Franklin Square Hospital Center, Baltimore, MD 21237, USA. jimwelker@hotmail.com

Archives of Internal Medicine
|February 27, 2008
PubMed
Abstract

Insights

Reducing the time to first antibiotic dose (TFAD) for community-acquired pneumonia (CAP) from 8 to 4 hours may decrease diagnostic accuracy in emergency departments (EDs). This change did not improve actual TFAD for CAP patients.

Area of Science:

  • Emergency Medicine
  • Infectious Diseases
  • Quality Improvement

Background:

  • Community-acquired pneumonia (CAP) diagnosis and treatment are critical in emergency departments (EDs).
  • A core quality measure mandates a time to first antibiotic dose (TFAD) of less than 4 hours for CAP patients.
  • Concerns exist that this time pressure may negatively impact diagnostic accuracy.

Purpose of the Study:

  • To evaluate the effect of a reduced TFAD quality measure on the accuracy of CAP diagnosis by ED physicians.
  • To compare diagnostic accuracy between a period with an 8-hour TFAD benchmark and a period with a 4-hour TFAD benchmark.

Main Methods:

  • Retrospective review of adult CAP admissions across two distinct time periods.
  • Group 1: TFAD benchmark of less than 8 hours.
  • Group 2: TFAD benchmark reduced to less than 4 hours.
  • Analysis of CAP diagnostic accuracy by ED physicians at admission and discharge.

Main Results:

  • Patients in the 4-hour TFAD group (Group 2) were significantly less likely to meet CAP diagnostic criteria upon admission compared to the 8-hour group (Group 1).
  • Agreement between ED physician diagnosis and predefined CAP criteria decreased in Group 2 (53.9%) versus Group 1 (62.0%) at discharge.
  • Agreement between admitting and discharging physician diagnoses also showed a trend of decrease in Group 2 (66.9%) versus Group 1 (74.5%).
  • Mean TFAD was similar between Group 1 (167.0 min) and Group 2 (157.8 min).

Conclusions:

  • Reducing the mandated TFAD for CAP from 8 to 4 hours appears to compromise the accuracy of pneumonia diagnosis by ED physicians.
  • The stricter TFAD measure did not lead to a reduction in the actual time to antibiotic administration.
  • Quality measures should balance timely treatment with diagnostic precision in emergency care settings.

Related Concept Videos

Pneumonia III: Complications and Assessment01:30

Pneumonia III: Complications and Assessment

Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following:
Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
Pneumonia IV: Management01:28

Pneumonia IV: Management

The treatment of pneumonia varies based on its severity and the causative pathogen. Here is a structured approach to managing pneumonia, integrating pharmaceutical and supportive care strategies.
Bacterial Pneumonia Treatment
For bacterial pneumonia, antibiotics serve as the cornerstone of therapy. Initial treatment often begins with empirical antibiotics, tailored to the anticipated causative organism and adjusted based on culture results. Key antibiotic choices include:
Pneumonia I: Introduction01:30

Pneumonia I: Introduction

Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Pneumonia I: Introduction01:29

Pneumonia I: Introduction

Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...
Pneumonia V: Nursing management and Prevention01:30

Pneumonia V: Nursing management and Prevention

Nursing management of pneumonia involves promoting airway patency, facilitating rest and conserving energy, encouraging fluid intake, maintaining nutrition, and educating patients.
The nurse must practice strict medical asepsis and adhere to infection control guidelines to minimize healthcare-associated infections.
Enhance airway patency
Position the patient correctly to facilitate drainage of the affected lung segments. Manual or mechanical percussion and vibration can also be employed.