Corrosives (Carbolic)

Question 1

Local effect of carbolic acid

Answer 1

After ingestion, there is hot burning pain extending from mouth to stomach but rapidly disappears due to local anesthetic effect, so there is no vomiting.
Hemorrhage due to detachment of protein layers and stricture on healing.

Question 2

Remote effect of carbolic acid:

Answer 2

CNS stimulation followed by depression
Respiratory and myocardial depression
Acute glomerulonephritis

Question 3

Cause of immediate death in phenol toxicity

Answer 3

Central respiratory depression

Question 4

Cause of delayed death in phenol toxicity:

Answer 4

Renal failure

Question 5

Management of phenol toxicity:

Answer 5

1. Care of respiration and coma if present
2. Gastric lavage in early presentation

Question 6

Urine of patient with phenol toxicity turns dark green on exposure to air due to:

Answer 6

Due to oxidation of excreted products of phenol