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Microbiology

Microbiology, Test Utilization

Helicobacter pylori Diagnosis – Serologic Testing is no Longer Recommended

Overview

Clinical guidelines no longer recommend serologic testing as a method for the diagnosis of H. pylori infection. Rather than IgG serology testing, other non-invasive testing methods such as H. pylori stool antigen and urea breath tests may be used to both diagnose and monitor response to therapy for H. pylori infection. In anticipation of an increase in stool antigen testing, currently a reference lab send-out test, Spectrum Health Regional Laboratory (SHRL) will be implementing this test as of October 29, 2018. By offering this test in-house, results will typically be available one day faster than present state. Continue Reading

Microbiology, Test Utilization

Test Name Change: Throat Culture Comprehensive

On June 27th, the name of the current order “Respiratory (non-sputum) Culture without Gram stain” will change to “Throat Culture Comprehensive.” All other specimen collection details and culture workup will remain the same. Given the fact that there are currently several similarly named tests, this change is being made to reduce confusion regarding test selection and to clarify acceptable specimen types. Continue Reading

Education & Training, Microbiology, Test Utilization

Influenza Diagnosis and Test Utilization

In anticipation of “Flu season”, it is valuable to revisit available testing methods for influenza and discuss when each test should be ordered. Though generally a self-limited infection for otherwise healthy individuals, influenza can be particularly severe for high-risk populations including infants, elderly, pregnant women, and immunocompromised hosts. Influenza incidence is largely seasonal with the majority of cases occurring between December and April of each year. Continue Reading