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Chirality

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Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
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Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...

Prochirality

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The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...

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Case 324: CHANTER Syndrome.

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|April 30, 2024

Summary

This summary is machine-generated.

An unresponsive patient with multiple substance use disorders presented with extremely elevated creatine kinase levels. Despite naloxone, the patient remained unresponsive, necessitating intubation and further neuroimaging for diagnosis.

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Area of Science:

Neurology
Toxicology
Emergency Medicine

Background:

A 69-year-old male with a history of substance use disorder, hypertension, and diabetes presented with unresponsiveness.
Vital signs were largely stable, with the exception of tachycardia (108 bpm).

Observation:

Physical examination was unremarkable apart from a Glasgow Coma Scale score of 8.
Laboratory results revealed markedly elevated creatine kinase (49,006 U/L) and elevated liver enzymes (ALT, AST).
Urine drug screening was positive for cocaine, marijuana, fentanyl, and benzodiazepines.

Findings:

The patient remained unresponsive after naloxone administration.
Computed tomography (CT) and magnetic resonance imaging (MRI) of the brain were performed to exclude intracranial abnormalities.
The extreme creatine kinase elevation in the context of polysubstance intoxication suggests potential rhabdomyolysis or other severe systemic effects.

Implications:

This case highlights the diagnostic challenges in unresponsive patients with polysubstance intoxication.
Prompt neuroimaging and laboratory evaluation are crucial for identifying potential causes and guiding management.
The etiology of the extreme creatine kinase elevation requires further investigation, potentially related to substance toxicity or associated complications.