The most common deficiency seen in patient with chronic alcoholism is?

HPSSC Staff Nurse - 2021

Applied Nutrition & Dietetics

Easy

Appeared in: HPSSC Staff Nurse - 2021

Explanation

Thiamine (Vitamin B1) is the most common deficiency in chronic alcoholism due to a combination of poor diet, impaired absorption in the gut, and reduced storage and activation by the damaged liver.
Thiamine is a vital coenzyme for carbohydrate metabolism, particularly in the brain. Its absence can lead to severe neurological damage.
The most critical clinical consequence is Wernicke-Korsakoff Syndrome (WKS). Wernicke's encephalopathy is an acute, reversible emergency (ataxia, confusion, ophthalmoplegia), which can progress to irreversible Korsakoff syndrome (amnesia, confabulation) if not treated promptly with thiamine.

Option B: While Cyanocobalamin (Vitamin B12) deficiency can occur in alcoholism due to poor diet and gastritis leading to malabsorption, it is not as common as thiamine deficiency.
Option C: Niacin (Vitamin B3) deficiency, which causes pellagra (the '3 Ds': dermatitis, diarrhea, dementia), can be seen in alcoholics but is significantly rarer than thiamine deficiency.
Option D: Vitamin C deficiency causes scurvy. While possible in individuals with alcoholism due to a poor diet lacking fresh fruits and vegetables, it is not the most common or acutely life-threatening deficiency associated with this condition.

Clinical Relevance

Nursing practice connection: Use the key finding related to Nutritional deficiencies in chronic alcoholism to guide bedside assessment, documentation, and the next nursing action.
A critical patient-safety rule is to administer thiamine BEFORE giving glucose to any patient with suspected chronic alcoholism or severe malnutrition. Giving glucose first can exhaust the remaining thiamine stores and precipitate acute Wernicke's encephalopathy.
Nurses must maintain a high index of suspicion for Wernicke's encephalopathy in any patient with a history of alcohol abuse who presents with confusion, gait instability, or abnormal eye movements.
What if? If the patient presented with a smooth, beefy-red tongue and symmetrical peripheral neuropathy affecting both sensation and motor function, the focus would broaden to include deficiencies of other B vitamins, such as B12 (cyanocobalamin) or B6 (pyridoxine), requiring a more comprehensive workup.

How to Approach the Question

Identify the key terms in the question: 'most common deficiency' and 'chronic alcoholism'.
Recall the major physiological impacts of chronic alcohol consumption. Focus on its effects on nutrition, the GI tract, and the liver.
Consider the options provided. All are vitamins that can be affected by poor nutrition.
Prioritize the deficiencies based on prevalence and severity of complications in alcoholism. The link between alcohol and severe neurological damage is a key association.
Connect thiamine (B1) to its critical role in brain metabolism. This explains why its deficiency leads to the most acute and dangerous neurological syndromes (Wernicke-Korsakoff).
Conclude that while other deficiencies exist, thiamine deficiency is the most frequent and clinically significant, making it the correct answer.

Concept Tested & Keywords

Concept Tested: Nutritional deficiencies in chronic alcoholism
Stem keywords: chronic alcoholism, deficiency
Lead-in keywords: most common
Clinical cues: The term 'chronic alcoholism' is a strong indicator for multiple nutritional deficiencies, with thiamine being the most critical due to its role in brain metabolism.

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E6 Medicine Harrison 22e Part 2 pp. 510-512, 511-513