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.

Correct Answer: B

Rationale: In alcoholics with anemia, iron deficiency and folic acid deficiency can coexist due to poor dietary intake and malabsorption issues associated with chronic alcohol consumption. Pernicious anemia, primarily related to vitamin B12 deficiency, is not commonly seen in alcoholics. While alcohol can interfere with iron absorption, it is not the sole factor contributing to anemia in alcoholics. Oral vitamin replacement is not contraindicated in alcoholics with anemia; however, it may be less effective due to absorption issues related to alcohol consumption.

Correct Answer: D

Rationale: The ideal respiratory rate in a newborn is 30-60 breaths per minute. A respiratory rate of 70 breaths per minute indicates tachypnea and may require intervention. Therefore, a rate of 70 breaths per minute would necessitate follow-up and further intervention. Irregular, abdominal, and shallow respirations are common in newborns and may not necessarily indicate the need for immediate follow-up or intervention.

Correct Answer: D

Rationale: Pica is a disorder characterized by the ingestion of nonfood substances, which can lead to a clinical iron deficiency. It may be the first sign of an underlying issue. Individuals with pica consume a variety of nonfood items such as ice, clay, dirt, or paste. Choice A, dependency on alcohol, is incorrect as it is not related to pica. Choice B, increased iron in the diet, is incorrect because pica involves ingesting nonfood items rather than having an increased intake of iron. Choice C, the sickle cell trait, is unrelated to pica and is therefore incorrect.

Correct Answer: C

Rationale: The most appropriate course of action for the nurse is to observe the hairline and scalp for possible signs of lice. The student's behavior of excessively rubbing her scalp raises concerns about a potential infestation, making it necessary to look for signs firsthand. Contacting the parents or the physician should be considered after observing for signs of lice to provide more information and take appropriate action. Requesting a private evaluation from the parents may not be required initially, as lice infestation is a common concern among children and observing for signs is the immediate step to address the situation.