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201-220 of 321 results by Haney Mallemat
Question
11 year-old boy presents with right knee pain and swelling after falling off of his bicycle. What's the diagnosis?
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2 year-old male with past medical history of asthma presents with fever and respiratory distress. CXR is shown below. What’s the diagnosis? (Hint: ...look beyond the obvious)
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A low-tidal volume (or protective) strategy of mechanical ventilation (i.e., tidal volume of 6-8cc/kg of ideal body weight) has previously been demonstrated to be beneficial in patients with acute respiratory distress syndrome (ARDS).
A meta-analysis was recently performed to determine whether this strategy of mechanical ventilation is also beneficial for patients without lung injury prior to initiation of mechanical ventilation.
Dr. Neto, et al. performed a meta-analysis of 20 studies (total of 2,822 mechanically ventilated patients) comparing a conventional ventilation strategy (average tidal volume was 10.6 cc/kg) to a protective ventilation strategy (average tidal volume was 6.4 cc/kg) of mechanical ventilation.
The authors concluded that patients ventilated with a protective lung-strategy had reductions in:
- Mortality
- Lung injury and ARDS
- Atelectasis
- Pulmonary infections
- Length of hospital stay
Bottom-line: This meta-analysis supports the notion that a strategy of low-tidal volume ventilation may have benefits for patients without ARDS, however prospective studies are needed.
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Do you like placing ultrasound-guided IV catheters? Check out this trick for covering the probe during the procedure.
http://ultrarounds.com/Ultrarounds/The_Vascular_Probe_Protector.html
or
https://www.youtube.com/watch?v=ZuOq6Ea_FbA&feature=plcp
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33 year-old male found unconscious by EMS and complains of right shoulder pain upon waking up in the ED. Diagnosis?
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Previous pearls have described the increasing evidence against colloid (e.g., hydroxyethyl starch) use during resuscitation. Now it appears that the crystalloid 0.9% normal saline (NS) may be under fire.
The use of large volumes of NS has been associated with hyperchloremic metabolic acidosis and harm in animal studies. The risk of harm in humans, however, has been less clear.
Bellomo et al. conducted a prospective observational study in which patients being resuscitated in the control group received NS at the clinicians' discretion; i.e., chloride-liberal strategy. The use of NS was restricted in the intervention group, where other less chloride containing fluids were used for resuscitation (e.g., Ringer's Lactate); i.e., a chloride-restrictive strategy.
The authors found that when compared to patients in the chloride-liberal group, the chloride-restrictive group had significantly less rise in baseline creatinine, less overall AKI, and a reduced need for renal replacement therapy.
Bottom line: Although this was only an observational study, the liberal use of normal saline during resuscitation may increase the risk of AKI and renal replacement therapy.
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Question
11 year-old male is tackled and falls on his outstretched hand while playing football. X-rays are shown below. What's the diagnosis?
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33 year-old male in respiratory distress. What's the diagnosis?
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Trauma patient (...yes, that's the only history you're given). Diagnosis?
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35 year-old male unrestrained driver following motor vehicle crash presents with blunt chest injury. There are multiple injuries on CXR (can you find them all?), but what's up with his right lung?
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70 year-old male recently treated for community-acquired pneumonia presents with bloody diarrhea, fever, and severe abdominal pain. Abdominal Xray is shown below. Diagnosis?
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26 year-old male from Indonesia presents with severe abdominal pain and weight loss for the past two months. He also states he found this "worm" in the toilet (see below) after a bowel movement. What is the medical treatment for this condition?
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Do you place central-lines?
Do you suture your central-lines into place?
Do you ever get worried that you are going to stick yourself with that needle?
If you answered yes to any of these questions, then maybe this pearl is for you; click here
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Intubated patients may occasionally meet certain criteria for extubation while in the Emergency Department. Extubation is not without its risk, however, as up to 30% of patients have respiratory distress secondary to laryngeal and upper airway edema, with some patients requiring re-intubation.
Prior to extubation, Intensivists use a brief “cuff-leak” test (deflation of the endotracheal balloon to assess the presence or absence of an air-leak around the tube) to indirectly screen for the presence of upper airway edema and ultimately the risk of re-intubation. The cuff-leak test is performed by deflating the endotracheal balloon followed by one or more of the following maneuvers:
- Using the ventilator to measure the difference between inspired and expired tidal volumes; if there is a difference in the measured volumes, then air is “leaking” around the endotracheal tube, implying minimal airway edema.
- Auscultation for an air “leak” around the tube during mechanical ventilation; auscultation of a leak implies that air is passing around the tube and minimal airway edema is present.
- Disconnecting the patient from the ventilator and occluding the endotracheal tube during spontaneous breathing; auscultation of a leak implies that there is air passing around the tube and minimal airway edema is present.
Ochoa et al. performed a systematic review to determine the accuracy of the “cuff-leak” test to predict upper airway edema prior to extubation. The authors concluded that a positive cuff-leak test (i.e., absence of an air-leak) indicates an elevated risk of upper airway obstruction and re-intubation. A negative cuff-leak test (i.e., presence of an air-leak), however, does not reliably exclude the presence of upper airway edema or the need for subsequent re-intubation.
Bottom line: No test prior to extubation reliably predicts the absence of upper airway edema. Patients extubated in the Emergency Department require close observation with airway equipment located nearby.
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Guide-wires can be challenging to dispose of after central-line insertion because they are difficult to keep on the field, hard to place in the sharps box, and can splash nearby observers.
Click here for this little guide-wire disposal trick.
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Question
27 year-old woman with AIDS presents complaining of a painful, puritic, and papular rash. What's the diagnosis?
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Question
40 year-old male with severe uncontrolled hypertension presents with altered mental status (head CT below). The CXR is from the same patient. What's the connection?
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Question
40 year-old male with severe uncontrolled hypertension presents with altered mental status. Head CT is shown here. Name three common anatomic locations generally seen for non-traumatic intracerebral hemorrhage.
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32 year-old female presents with 5 days of fever, chills, and flank pain. She is hypotensive on presentation and urinalysis shows pyuria. Click here for the non-contrast CT scan. What's the diagnosis and what type of antibiotics should be started empirically?