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The PSNet Collection: All Content

The AHRQ PSNet Collection comprises an extensive selection of resources relevant to the patient safety community. These resources come in a variety of formats, including literature, research, tools, and Web sites. Resources are identified using the National Library of Medicine’s Medline database, various news and content aggregators, and the expertise of the AHRQ PSNet editorial and technical teams.

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Displaying 1 - 14 of 14 Results
WebM&M Case November 16, 2022

A 61-year-old women with a mechanical aortic valve on chronic warfarin therapy was referred to the emergency department (ED) for urgent computed tomography (CT) imaging of the right leg to rule out an arterial clot. CT imaging revealed two arterial thromboses the right lower extremity and an echocardiogram revealed a thrombus near the prosthetic heart valve. The attending physician ordered discontinuation of warfarin and initiation of a heparin drip.

WebM&M Case July 8, 2022

A 58-year-old man with a past medical history of seizures presented to the emergency department (ED) with acute onset of left gaze deviation, expressive aphasia, and right-sided hemiparesis. The patient was evaluated by the general neurology team in the ED, who suspected an acute ischemic stroke and requested an evaluation by the stroke neurology team but did not activate a stroke alert. The stroke team concluded that the patient had suffered a focal seizure prior to arrival and had postictal deficits.

WebM&M Case September 25, 2019
A man with a history of T6 paraplegia came to the emergency department with delirium, hypotension, and fever. Laboratory results revealed a high white blood cell count and mild elevation of bilirubin and liver enzymes. A stat abdominal CT showed a mildly thickened gallbladder. The patient was admitted to the intensive care unit with a provisional diagnosis of septic shock and treated with broad-spectrum antibiotics and intravenous fluids. He was transferred to the medical ward on hospital day 2, where the receiving hospitalist realized the diagnosis was still unclear.
WebM&M Case September 1, 2017
An older man with Crohn disease was admitted for abdominal pain and high stool output from his ileostomy. Despite blood passing from his ostomy and a falling hemoglobin level, the patient was not given a timely blood transfusion.
WebM&M Case March 1, 2017
Although meningitis and neurosyphilis were ruled out for a woman presenting with a headache and blurry vision, blood tests returned indicating latent (inactive) syphilis. Due to a history of penicillin allergy, the patient was sent for testing for penicillin sensitivity, which was negative. The allergist placed orders for neurosyphilis treatment—a far higher penicillin dose than needed to treat latent syphilis, and a treatment regimen that would have required hospitalization.
WebM&M Case March 21, 2009
Interrupted during a telephone handoff, an ED physician, despite limited information, must treat a patient in respiratory arrest. The patient is stabilized and transferred to the ICU with a presumed diagnosis of aspiration pneumonia and septic shock. Later, ICU physicians obtain further history that leads to the correct diagnosis: pulmonary embolism.
WebM&M Case September 1, 2008
After several pediatric visits, parents of a newborn with low output and weight loss contact a lactation consultant, who discovered that ankyloglossia (tongue-tie) was preventing the infant from receiving adequate intake from breastfeeding.
WebM&M Case January 1, 2008
Blood culture results on a man with chronic health problems revealed Corynebacterium spp. One month later, the patient became ill, and cultures again revealed Corynebacterium. The physician who received the result was unfamiliar with the patient, assumed that this finding was a contaminant, and took no action. Three weeks later, the patient was admitted and diagnosed with subacute bacterial endocarditis.
WebM&M Case May 1, 2007
An elderly patient with a seizure disorder (and recent admission for uncontrolled seizures) was admitted to the hospital to evaluate symptoms of lethargy, confusion, and decreased appetite. The team misattributed his mental status change to an infection but later discovered that the patient had phenytoin toxicity.
WebM&M Case June 1, 2004
A woman presents to the ED with severe vertigo and vomiting. Over several hours, she is handed off to three different physicians, none of whom suspects a dangerous lesion. Later, an hour after onset of a severe headache, she dies.
WebM&M Case January 1, 2004
During a hernia repair, surgeons decide to remove a patient's hydrocele, spermatic cord, and left testicle—without realizing that his right testicle had been removed previously.