Nokea
Using the figure shown, indicate where on the abdomen the nurse should palpate to examine a client's liver for size and tenderness.
- A. Right upper quadrant
- B. Left upper quadrant
- C. Right lower quadrant
- D. Left lower quadrant
Correct Answer: A
Rationale: The liver is located primarily in the right upper quadrant of the abdomen.
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Which statement about chemical digestion in the human alimentary canal is correct?
- A. Digestion of carbohydrates is completed in the colon.
- B. Enzymes are secreted to break down cellulose in the duodenum.
- C. Protein digestion is completed in the ileum.
- D. The stomach secretes enzymes to break down starch.
Correct Answer: C
Rationale: Protein digestion begins in the stomach with pepsin and is completed in the ileum by proteolytic enzymes from the pancreas and intestinal mucosa.
All enzymes involved in protein digestion are:
- A. secreted by the pancreas
- B. activated by HCl
- C. present in the stomach
- D. secreted in an inactive form
Correct Answer: D
Rationale: Protein-digesting enzymes like pepsinogen and trypsinogen are secreted in an inactive form and activated later.
By which process, most of glucose and amino acids are absorbed in the small intestine?
- A. Active transport
- B. Passive transport
- C. Osmosis
- D. Selective absorption
Correct Answer: A
Rationale: Glucose and amino acids are primarily absorbed via active transport in the small intestine.
A client is being prepared for a colonoscopy, a test to visualize the large intestine. The nurse is aware that this examination will assist in identification of pathology of the:
- A. Large intestine
- B. Stomach
- C. Small intestine
- D. Esophagus
Correct Answer: A
Rationale: A colonoscopy visualizes the large intestine to detect abnormalities.
Sieve plate is the found in the endothelium of:
- A. Hepatic sinusoids.
- B. Fenestrated capillaries of intestinal villi.
- C. Capillaries of islets of Langerhans.
- D. Lacteal lymphatic capillaries.
Correct Answer: A
Rationale: Sieve plates are clusters of fenestrae in the endothelium of hepatic sinusoids, allowing plasma exchange with the space of Disse.