which of the following organs of the digestive system has a primary function of absorption
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Nursing Elites

NCLEX-PN

NCLEX PN 2023 Quizlet

1. Which of the following organs of the digestive system has a primary function of absorption?

Correct answer: C

Rationale: The small intestine is the correct answer. It is the primary organ responsible for absorption in the digestive system. The stomach's primary function is to break down food through mechanical and chemical digestion. The pancreas produces digestive enzymes to aid in the breakdown of food. The gallbladder stores bile produced by the liver, which helps in the digestion of fats. However, neither the stomach, pancreas, nor gallbladder play the primary role of absorption in the digestive process, making them incorrect choices.

2. What is most important for the healthcare professional to do prior to initiating peritoneal dialysis?

Correct answer: D

Rationale: The correct answer is to warm the fluids. Warming the dialysis fluids is crucial before initiating peritoneal dialysis to prevent abdominal discomfort and promote vasodilation, which helps in achieving good exchange in the peritoneum. Aspirating to check placement (Choice A) is not typically necessary before initiating peritoneal dialysis. Ensuring the client voids (Choice B) is not directly related to the procedure of peritoneal dialysis. Irrigating the catheter to maintain patency (Choice C) is usually done as part of routine care but is not specifically required prior to initiating peritoneal dialysis. Therefore, the most important action to take before starting peritoneal dialysis is to warm the fluids.

3. A client has been receiving cyanocobalamin (B12) injections for the past 6 weeks. Which laboratory finding indicates that the medication is having the desired effect?

Correct answer: D

Rationale: Cyanocobalamin is a B12 medication used for pernicious anemia. A reticulocyte count of 1% indicates the desired effect of the medication, as reticulocytes are immature red blood cells that increase in response to B12 therapy, improving anemia. Neutrophils, basophils, and monocytes are white blood cells and are not directly influenced by B12 injections, making them incorrect choices.

4. The healthcare provider should utilize data about which of the following to provide information about the nutritional status of a client being evaluated for malnutrition?

Correct answer: A

Rationale: Objective anthropometric measurements such as triceps skinfold and mid-arm circumference (MAC), along with weight, are usually used to diagnose malnutrition. Triceps skinfold measurement specifically helps assess body fat and muscle mass, providing valuable information about the client's nutritional status. Fasting blood glucose level, hemoglobin A1c level, and serum lipid profile results are important tests in assessing different aspects of health such as diabetes management and cardiovascular risk, but they are not specific indicators of malnutrition.

5. A nurse is assessing an 18-year-old female who has recently suffered a TBI. The nurse notes a slower pulse and impaired respiration. The nurse should report these findings immediately to the physician due to the possibility the patient is experiencing which of the following conditions?

Correct answer: A

Rationale: The nurse should report the slower pulse and impaired respiration to the physician immediately as they are indicative of increased intracranial pressure (ICP) following a traumatic brain injury (TBI). These signs suggest that there may be a rise in pressure within the skull, which can be a life-threatening condition requiring urgent intervention. Options B and C are unlikely in this scenario as they do not correlate with the symptoms presented. Meningitis (Option D) typically presents with different signs and symptoms, such as fever, headache, and neck stiffness, which are not described in the patient's case.

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