False negative sputum culture?

How often are sputum cultures false negative? My son is currently recovering from a month of sickness including sinusitis that then settled into his chest. His sputum culture was taken 3 days after he finished 10 days of amox and had just started 3 days of augmentin. His sputum was thick yellow good sample and came back normal. I suppose he could have viral pneumonia but I almost wish it was something so we could do something besides empiric therapy. He is being treated with oral antibiotic for one month now and getting better along with albuterol/pulmicort. Any insights?
Source: Cystic Fibrosis Newly Diagnosed Forum - Category: Respiratory Medicine Authors: Tags: Newly Diagnosed Source Type: forums

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ConclusionData from this large, long-term study indicate that the nature, character, and frequency of SAEs in real-world settings are consistent with natalizumab's known safety profile. (Funded by Biogen; ClinicalTrials.gov identifiers: NCT00477113 and NCT00483847.)
Source: Multiple Sclerosis and Related Disorders - Category: Neurology Source Type: research
ConclusionOur results show that fluoroscopic-guided NGT placement is a highly safe and effective procedure for patients with advanced HNC requiring enteral feeding.
Source: Journal of the Formosan Medical Association - Category: General Medicine Source Type: research
Authors: Afsharpooyan S, Mohammadian T Abstract Helicobacter pylori infection occurs throughout the world between countries and races. A seroprevalence study of H. pylori infection in the occurrence of atherosclerosis (ASc) has been considered to be the main cause of cardiovascular diseases (CVDs) in part of Iran. From 600 volunteers, 97 serum samples were selected and tested for the presence of H. pylori infection. Positive and negative H. pylori infection samples were then selected for Chlamydia pneumonia and cytomegalovirus infection. Their serum levels for high-sensitive C-reactive protein (hs-CRP) and IL-6 tit...
Source: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy - Category: Microbiology Tags: Monoclon Antib Immunodiagn Immunother Source Type: research
Pneumonia is common in patients on a ventilator after cardiac arrest. Results of the ANTHARTIC trial suggest prophylactic antibiotics can reduce that risk.Medscape Medical News
Source: Medscape Cardiology Headlines - Category: Cardiology Tags: Cardiology News Source Type: news
(Boston University School of Medicine) Researchers have discovered that TRM cells tell surrounding lung cells to send out a signal to recruit bacteria killers called neutrophils. These finding show that immunity within the lung tissue is what provides the most protection for preventing pneumonia.
Source: EurekAlert! - Infectious and Emerging Diseases - Category: Infectious Diseases Source Type: news
CONCLUSIONS: Chorioamnionitis and endometritis were the most common causes of sepsis, together accounting for about half of cases. Notable differences were observed in the sensitivity and specificity of sepsis screening tools with the highest to lowest sensitivity being SIRS, MEW, and qSOFA criteria, and the highest to lowest specificity being qSOFA, MEW, and SIRS. Mortality was doubled in the cohort of patients who received antibiotics after>1 hour. Clinicians need to be vigilant to identify cases of peripartum sepsis early in its course and prioritize timely antibiotic therapy. PMID: 31743182 [PubMed - in process]
Source: Anesthesia and Analgesia - Category: Anesthesiology Authors: Tags: Anesth Analg Source Type: research
AbstractPurpose of ReviewVentilator-associated pneumonia (VAP) is one of the most common infections in the ICU. Prompt diagnosis is vital as mortality increases with delayed antibiotic therapy. However, accurate diagnosis is challenging due to non-specific clinical features in a complicated patient cohort. Microbiological culture data remains a crucial aspect in confirming diagnosis.Recent FindingsLiterature data comparing the benefit of invasive respiratory sampling to non-invasive is inconclusive. Differences in culturing practices translate in overidentification of organisms of unclear significance. Positive culture dat...
Source: Current Infectious Disease Reports - Category: Infectious Diseases Source Type: research
Conclusions Cystic fibrosis or CFTR-RD can present as ARP/CP. Complete diagnostic testing for CFTR-RD in patients with ARP/CP will broaden treatment options and help to identify comorbid illness.
Source: Pancreas - Category: Gastroenterology Tags: Original Articles Source Type: research
Abstract OBJECTIVES: Pediatric sinus surgery is indicated for a wide range of sinonasal and skull base pathologies, but it is most commonly performed for recalcitrant chronic rhinosinusitis or complicated acute sinusitis. The authors aim to report medical risk factors of morbidity and mortality following inpatient sinus surgery in the pediatric population. METHODS: Using data from the Kids' Inpatient Database from 2003 to 2012, patients with International Classification of Diseases, Ninth Revision, procedure codes for primary sinus surgery were identified. Mixed-effect multivariable logistic regression was us...
Source: The Annals of Otology, Rhinology, and Laryngology - Category: ENT & OMF Authors: Tags: Ann Otol Rhinol Laryngol Source Type: research
(Nationwide Children's Hospital) The laboratory of Lauren Bakaletz, PhD, director, Center for Microbial Pathogenesis and vice president of basic sciences, The Research Institute at Nationwide Children's, studied the biofilm construction capabilities of nontypeable Haemophilus influenzae (NTHI), a bacterium responsible for sinusitis, pneumonia, exacerbations of cystic fibrosis and COPD, bronchitis and ear infections.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news
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