Stage 1 iron toxicity presents with which manifestation?

Stage 1 iron toxicity presents with which manifestation?

• A. Immediate GI irritation
• B. Neurological symptoms
• C. Cardiac arrhythmias
• D. Hypoglycemia

Answer: (A)

Immediate GI irritation is the hallmark of the initial phase after iron ingestion. When iron salts are swallowed, they directly irritate the lining of the gastrointestinal tract, causing vomiting, abdominal pain, and often diarrhea or GI bleeding within minutes to a few hours. This local caustic effect explains why early symptoms are dominated by GI upset. Neurological symptoms, cardiac arrhythmias, and hypoglycemia don’t typically appear in this first phase; they stem from later systemic toxicity as iron is absorbed and causes metabolic derangements, hepatic injury, and shock. So the best answer reflects the immediate, local GI irritation that defines the early presentation.

Immediate GI irritation is the hallmark of the initial phase after iron ingestion. When iron salts are swallowed, they directly irritate the lining of the gastrointestinal tract, causing vomiting, abdominal pain, and often diarrhea or GI bleeding within minutes to a few hours. This local caustic effect explains why early symptoms are dominated by GI upset.

Neurological symptoms, cardiac arrhythmias, and hypoglycemia don’t typically appear in this first phase; they stem from later systemic toxicity as iron is absorbed and causes metabolic derangements, hepatic injury, and shock. So the best answer reflects the immediate, local GI irritation that defines the early presentation.