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Which of the following is not a part of the digestive system?
- A. Liver
- B. Gallbladder
- C. absorption-neet-mcq/ 8/13 1/17/25, 2:54 PM Digestion and Absorption NEET MCQ 2024
- D. Lungs
Correct Answer: D
Rationale: The correct answer is D: Lungs. The lungs are not a part of the digestive system. The digestive system is responsible for breaking down food into nutrients, absorbing those nutrients, and eliminating waste. The lungs are part of the respiratory system, responsible for gas exchange. Liver (A) and gallbladder (B) are both part of the digestive system, aiding in digestion and nutrient absorption. Absorption (C) is a process within the digestive system, not a separate entity. In summary, the lungs do not play a role in the digestion process, making them the correct answer choice.
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Where does most nutrient absorption occur?
- A. Stomach
- B. Small intestine
- C. Large intestine
- D. Mouth
Correct Answer: B
Rationale: The correct answer is B: Small intestine. The small intestine is where most nutrient absorption occurs due to its large surface area, specialized villi, and microvilli that increase absorption efficiency. Digestive enzymes and bile are also secreted here to further break down nutrients. Stomach (A) primarily aids in digestion, not absorption. Large intestine (C) mainly absorbs water and electrolytes, not nutrients. Mouth (D) begins the digestion process by mechanical breakdown and some enzyme release, but minimal absorption occurs here.
Checking for the return of the gag reflex and monitoring for LUQ pain, nausea and vomiting are necessary nursing actions after which diagnostic procedure?
- A. ERCP
- B. Barium swallow
- C. Colonoscopy
- D. Esophagogastroduodenoscopy (EGD)
Correct Answer: D
Rationale: After EGD the gag reflex should return and the nurse should monitor for complications like LUQ pain nausea or vomiting.
Patients with GI bleeding may experience an acute or chronic blood loss. The patient is experiencing hematochezi The physician recognizes this as:
- A. Vomiting of bright red or maroon blood.
- B. Black, tarry stool.
- C. Coffee ground emesis.
- D. Red- or maroon-colored stool rectally.
Correct Answer: D
Rationale: Hematochezia refers to the passage of fresh, red or maroon-colored blood from the rectum, often indicating lower GI bleeding.
Donald is a 61 y.o. man with diverticulitis. Diverticulitis is characterized by:
- A. Periodic rectal hemorrhage.
- B. Hypertension and tachycardia.
- C. Vomiting and elevated temperature.
- D. Crampy and lower left quadrant pain and low-grade fever.
Correct Answer: D
Rationale: The correct answer is D because diverticulitis typically presents with crampy pain in the lower left quadrant of the abdomen and a low-grade fever. This is due to inflammation or infection of the diverticula.
A: Periodic rectal hemorrhage is more characteristic of diverticular bleeding, not diverticulitis.
B: Hypertension and tachycardia are not typically associated with diverticulitis but may occur in severe cases or with complications.
C: Vomiting and elevated temperature can occur but are not as specific to diverticulitis as the combination of symptoms described in option D.
Which of the following tubes is surgically inserted into the abdomen but goes to the small intestine?
- A. Orogastric tube
- B. Nasogastric tube
- C. Jejunostomy tube
- D. Gastrostomy tube
Correct Answer: C
Rationale: A jejunostomy tube is placed directly into the small intestine for enteral feeding in clients who cannot tolerate gastric feedings.