Which option presents a quick bedside test essential in AMS evaluation to rule out metabolic causes?

Which option presents a quick bedside test essential in AMS evaluation to rule out metabolic causes?

• A. Hemoglobin A1c
• B. Blood glucose level
• C. Chest X-ray
• D. Serum ferritin

Answer: (B)

When evaluating altered mental status, the first priority is to quickly rule out reversible metabolic problems, and the fastest way to do this at the bedside is a finger-stick blood glucose test. Hypoglycemia is a common, treatable cause of AMS, and obtaining a rapid glucose reading allows immediate treatment (glucose give) to prevent further decline. A bedside glucose check thus directly informs urgent management. Hemoglobin A1c looks at average blood glucose over weeks to months, not the patient’s current state, so it doesn’t help with an acute assessment. A chest X-ray might reveal infections or other non-metabolic issues contributing to AMS, but it’s not a metabolic screen and takes more time. Serum ferritin reflects iron stores or inflammation, not acute metabolic derangements causing AMS.

When evaluating altered mental status, the first priority is to quickly rule out reversible metabolic problems, and the fastest way to do this at the bedside is a finger-stick blood glucose test. Hypoglycemia is a common, treatable cause of AMS, and obtaining a rapid glucose reading allows immediate treatment (glucose give) to prevent further decline. A bedside glucose check thus directly informs urgent management.

Hemoglobin A1c looks at average blood glucose over weeks to months, not the patient’s current state, so it doesn’t help with an acute assessment. A chest X-ray might reveal infections or other non-metabolic issues contributing to AMS, but it’s not a metabolic screen and takes more time. Serum ferritin reflects iron stores or inflammation, not acute metabolic derangements causing AMS.