Gastric lavage is contraindicated in
**Question:** Gastric lavage is contraindicated in
A. Patients with perforation or rupture of the stomach
B. Patients with gastric outlet obstruction
C. Patients with severe bleeding from the upper gastrointestinal tract
D. Patients with severe cardiopulmonary or renal failure
**Core Concept:** Gastric lavage is a procedure where the stomach is washed with a large volume of fluid to remove ingested toxins, drugs, or foreign substances. It is a common emergency procedure in poisoning cases.
**Why the Correct Answer is Right:** Gastric lavage is contraindicated in patients with perforation or rupture of the stomach because it may lead to worsening of the condition by causing further leakage of toxic substances into the peritoneal cavity or increasing the risk of infection. In patients with gastric outlet obstruction, lavage may cause further complications like gastric rupture or perforation due to increased pressure within the stomach.
**Why Each Wrong Option is Incorrect:**
A. Contraindications in patients with perforation or rupture of the stomach: Lavage can worsen the condition by causing further leakage of toxic substances into the peritoneal cavity or increasing the risk of infection.
B. Contraindications in patients with gastric outlet obstruction: Lavage can cause complications like gastric rupture or perforation due to increased pressure within the stomach.
C. Contraindications in patients with severe bleeding from the upper gastrointestinal tract: Gastric lavage can cause further bleeding or exacerbate the situation, especially in patients with active bleeding.
D. Contraindications in patients with severe cardiopulmonary or renal failure: Gastric lavage can worsen the patient's condition in critically ill patients with compromised organ functions.
**Clinical Pearl:** When considering gastric lavage in poisoning cases, it is essential to weigh the potential benefits against the risks and contraindications. In some cases, alternative treatments may be more appropriate, such as activated charcoal or specific antidotes.