Paucis Verbis card: Urine Toxicology Screen

urine-sample

In the Emergency Department, we often order urine toxicology screens for patients with altered mental status without an obvious cause. I find that patients are often rather forthcoming about their drug use, if they are alert enough to talk. In those cases, ordering a urine toxicology screen is unnecessary.

When you do order a tox screen, however, how do you interpret the information? While the result is a binary answer (positive vs negative), there are some nuances to interpretation. For instance, how long does a patient with urine toxicology remain positive for the drugs? Are there any medications that can cause false positives? See the helpful table below from a great review article in American Family Physician.

Check out what your laboratory screens for and, more importantly, what it does NOT screen for. Our lab, for example, does not screen for PCP but does screen for MDMA (ecstacy). That isn’t a big deal, since patients who ingest PCP aren’t too hard to detect clinically. They have crazy vertical nystagmus, and often there are at least 6 police officers trying to restrain the yelling patient.

PV Card: Urine Toxicology Screen


Adapted from [1]
Go to ALiEM (PV) Cards for more resources.

Reference

  1. Standridge J, Adams S, Zotos A. Urine drug screening: a valuable office procedure. Am Fam Physician. 2010;81(5):635-640. [PubMed]
By |2021-10-18T10:17:50-07:00Jul 23, 2010|ALiEM Cards, Tox & Medications|

Trick of the Trade: A tongue blade is as mighty as an xray

Patients often present to the Emergency Department for mandibular blunt trauma. Usually these patients have soft tissue swelling at the point of impact. In mandibular body fractures, the fracture line often extends to the alevolar ridge. This may cause a gap between a pair of lower teeth.

In patients with jaw pain, mild swelling, and normal dentition, is there a way to avoid imaging these patients to rule-out a mandible fracture?

(more…)

By |2016-11-11T19:00:37-08:00Jul 21, 2010|ENT, Tricks of the Trade|

Paucis Verbis card: Rapid Sequence Intubation

Laryngoscope rapid sequence intubation

The key to success in performing procedures is preparation. This is especially true for endotracheal intubations in the Emergency Department where things are chaotic. Strategic planning and anticipation of obstacles during rapid sequence intubation (RSI) are key principles to avoiding complications.

PV Card: Rapid Sequence Intubation


Go to ALiEM (PV) Cards for more resources.

By |2021-10-18T10:19:45-07:00Jul 16, 2010|ALiEM Cards, Tox & Medications|

Trick of the Trade: OKN drum to test psychogenic coma

3D Character and Question MarkOccasionally, emergency physicians see patients who present because they are unresponsive despite normal vital signs and an otherwise normal exam. You detect no drugs or alcohol on board. You suspect a psychiatric or malingering etiology, but aren’t sure. They seem non-responsive to voice and minimally responsive to very painful stimuli. Is this a case of psychogenic coma or true coma (with bilateral hemispheric dysfunction)?

What test can you do to reassure yourself that this may indeed be psychogenic coma?

(more…)

By |2019-01-28T23:37:29-08:00Jul 14, 2010|Neurology, Tricks of the Trade|

Paucis Verbis card: Penetrating abdominal trauma

penetrating abdominal traumaWhen I did my residency training in Emergency Medicine and in the first few years as an attending, we regularly performed diagnostic peritoneal lavages in patients with stab wounds injuries to the abdomen. Patients also routinely went to the operating room for exploration.

Now with the evolution of CT imaging technology and more clinical studies, there is now a role for a less invasive management approach. These are the Eastern Association for the Surgery of Trauma (EAST) guidelines.

PV Card: Penetrating Abdominal Trauma


Adapted from [1]
Go to ALiEM (PV) Cards for more resources.

Reference

  1. Como JJ, Bokhari F, Chiu WC, et al. Practice Management Guidelines for Selective Nonoperative Management of Penetrating Abdominal Trauma. The Journal of Trauma: Injury, Infection, and Critical Care. 2010;68(3):721-733. doi: 10.1097/ta.0b013e3181cf7d07
By |2021-10-18T10:21:39-07:00Jul 9, 2010|ALiEM Cards, Trauma|

Paucis Verbis card: Burn Wounds

burn woundsBurn classification and management are key skills for ED providers to remember. Depending on the prevalence of burns in your ED, it may be hard for forget the details. So here is a PV reference card on the rule of 9’s, different classifications of burns, and indications for burn unit referral.

Update (April 22, 2016): This card was updated by Dr. Christian Rose (UCSF-SFGH) to reflect current evidence that topical antibiotics and honey are IN, while silver sulfadiazine is OUT for partial-thickness burns.

PV Card: Burn Wounds

Adapted from [1-3]
Go to ALiEM (PV) Cards for more resources.

References

  1. Gómez R, Cancio L. Management of burn wounds in the emergency department. Emerg Med Clin North Am. 2007;25(1):135-146. [PubMed]
  2. Malik K, Malik M, Aslam A. Honey compared with silver sulphadiazine in the treatment of superficial partial-thickness burns. Int Wound J. 2010;7(5):413-417. [PubMed]
  3. Jull A, Cullum N, Dumville J, Westby M, Deshpande S, Walker N. Honey as a topical treatment for wounds. Cochrane Database Syst Rev. 2015;(3):CD005083. [PubMed]
By |2021-10-18T10:23:37-07:00Jul 2, 2010|ALiEM Cards, Dermatology, Trauma|
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