Free Certified Gastroenterology RN MCQ Question and Answers — Questions and Answers
Question 1: Which one of the following is a benzodiazepine reversal medication for an overly sedated patient?
- Naloxone (Narcan)
- Atropine
- N-acetylcysteine
- romazicon (Flumazenil) (Correct answer)
Correct answer: romazicon (Flumazenil)
Flumazenil (Romazicon) is a specific benzodiazepine receptor antagonist used to reverse the sedative effects of benzodiazepines. It competes with benzodiazepines for binding sites on GABA-A receptors in the brain, rapidly counteracting central nervous system depression. In contrast, Naloxone is used to reverse opioid overdose.
Question 2: Which of the following symptoms, after an esophagoscopy to obtain a biopsy of the thoracic esophagus, MOST suggests the need for urgent management of perforation?
- A mild cough and sore throat
- Local discomfort but no systemic response
- Chest pain, dysphagia, and tachycardia (Correct answer)
- Nausea and vomiting
Correct answer: Chest pain, dysphagia, and tachycardia
Perforation of the esophagus is a serious complication of esophagoscopy, and symptoms like severe chest pain, difficulty swallowing (dysphagia), and an elevated heart rate (tachycardia) are classic signs. These symptoms indicate potential mediastinitis or leakage of contents into the chest cavity, requiring immediate medical intervention. A mild cough and sore throat are common, less severe post-procedure symptoms.
Question 3: How soon after the collection should the laboratory get the duodenal aspirate?
- Within 2 hours
- Within 4 hours
- Within 24 hours
- Immediately (Correct answer)
Correct answer: Immediately
Duodenal aspirate samples, especially when testing for parasites like Giardia or bacterial overgrowth, need to be processed immediately to ensure the viability of organisms and prevent degradation of diagnostic markers. Delays can lead to inaccurate results, as some organisms are fragile or their numbers may decrease rapidly outside the body. Prompt delivery to the lab maintains sample integrity for accurate diagnosis.
Question 4: Which of the following phases should pain control be started at, according to the WHO's three-step ladder approach to pain management, if a patient's abdominal discomfort is related to colon cancer and ranges from 4 to 8 on the pain scale?
- Whichever step is appropriate at the time of initiation (Correct answer)
- Step 1
- Step 2
- Step 3
Correct answer: Whichever step is appropriate at the time of initiation
The WHO analgesic ladder is designed to match the intensity of pain with the appropriate level of analgesic. For moderate to severe pain (4-8 on a scale of 0-10), it is appropriate to start at Step 2 (weak opioid + non-opioid) or Step 3 (strong opioid + non-opioid), rather than strictly progressing through each step sequentially. The principle is to provide effective pain relief promptly, escalating or de-escalating as needed, based on the initial pain level.
Question 5: Ten individuals were affected by a 2-week-long epidemic of Clostridium difficile infections in the gastroenterology unit. Which of the following should staff members focus their efforts on in order to stop the spread of the infection?
- Testing patient stool specimen
- Limiting patient contacts
- Antibiotic stewardship
- Contact precautions/hand hygiene (Correct answer)
Correct answer: Contact precautions/hand hygiene
Clostridium difficile (C. diff) is highly contagious and spread through the fecal-oral route, often via contaminated surfaces and healthcare workers' hands. Implementing strict contact precautions, including gown and glove use, and meticulous hand hygiene with soap and water are the most critical interventions to prevent its spread in a healthcare setting. These measures directly interrupt the transmission chain during an outbreak.
Question 6: Infliximab, a biologic response modifier, will be used as the first step in treating a patient with Crohn's disease. Which of the following tests should be performed on the patient before starting treatment?
- TB and hepatitis B (Correct answer)
- Hepatitis A and B
- Diabetes and hepatitis C
- Anemia
Correct answer: TB and hepatitis B
Infliximab, a TNF-alpha inhibitor, suppresses the immune system, significantly increasing the risk of reactivating latent infections like tuberculosis (TB) and hepatitis B. Therefore, it is crucial to screen patients for these infections before initiating treatment with infliximab. Positive results would require appropriate treatment or prophylaxis to prevent severe complications.
Question 7: After consuming vegetables contaminated with E. coli (0157:H7), a 76-year-old woman experienced stomach cramps and non-bloody diarrhea for 48 hours, followed by 4 days of bloody diarrhea. Which of the following conditions is the PATIENT'S HIGHEST RISK for developing?
- Small bowel obstruction
- Hemolytic uremic syndrome (Correct answer)
- Intestinal necrosis
- Intestinal perforation
Correct answer: Hemolytic uremic syndrome
E. coli O157:H7 infection, especially in vulnerable populations like the elderly, is strongly associated with the development of Hemolytic Uremic Syndrome (HUS). HUS is a severe complication characterized by hemolytic anemia, thrombocytopenia, and acute kidney injury, caused by toxins produced by the bacteria. The progression from non-bloody to bloody diarrhea is a classic presentation preceding HUS.
Free Certified Gastroenterology RN MCQ Question and Answers
Which one of the following is a benzodiazepine reversal medication for an overly sedated patient?