In what digestive system structure does most of the digestion and absorption take place?
Stomach
Duodenum/proximal jejunum
Ascending colon
Transverse colon
The Correct Answer is B
A. Stomach: The stomach primarily functions in mechanical digestion and protein breakdown, but most absorption does not occur here.
B. Duodenum/proximal jejunum: These regions of the small intestine are responsible for majority of digestion and nutrient absorption, including fats, carbohydrates, and proteins.
C. Ascending colon: This is part of the large intestine, mainly involved in water and electrolyte absorption, not digestion.
D. Transverse colon: Like the ascending colon, this structure primarily functions in water absorption and feces formation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. “This test will inform your provider if you are anemic.” Hemoglobin and hematocrit levels are used to assess anemia, not creatinine.
B. “This test will inform your provider if you have a thyroid disorder.” TSH and T3/T4 levels assess thyroid function, not creatinine.
C. “This test will inform your provider if you have an infection.” Infection is usually assessed by WBC count, CRP, or cultures, not creatinine.
D. “This test will inform your provider how your kidneys are functioning.” Serum creatinine is a reliable indicator of renal function; it reflects the kidney’s ability to clear waste.
Correct Answer is A
Explanation
A. Storage: The urinary bladder’s primary function is to store urine until it is excreted during urination.
B. Filtration: Filtration occurs in the glomeruli of the kidneys, not in the bladder.
C. Reabsorption: Reabsorption happens in the renal tubules after filtration in the kidneys.
D. Buffering of H+: Buffering of hydrogen ions occurs in the kidneys and blood, not in the bladder.
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