Correct Answer: B

Rationale: Fowler's position is the optimal position for a client receiving tube feedings via a gastrostomy tube because it reduces the risk of aspiration. In Fowler's position, the client is sitting up at a 45- to 60-degree angle, which helps prevent the formula from flowing back into the esophagus and causing aspiration pneumonia. Choice A, prone position (lying face down), would not be suitable for administering tube feedings as it increases the risk of aspiration. Sims' position (lying on the left side with the right knee flexed) and supine position (lying flat on the back) are also not ideal for administering tube feedings as they do not provide the same level of protection against aspiration as Fowler's position does.

Correct Answer: C

Rationale: The correct answer is C: ''Client found lying on the floor.'' In this situation, the nurse should document factual, objective information without making assumptions. Stating that the client was found lying on the floor directly reflects what was observed. Choice A, ''Incident report completed,'' is not a statement about the incident itself and does not provide relevant information. Choice B, ''Client climbed over the bedrails,'' introduces unnecessary speculation and assumption which should be avoided when documenting incidents. Choice D, ''Client was trying to get out of bed,'' focuses on the client's behavior rather than the objective observation of the client's position when found.

Correct Answer: B

Rationale: A peak flow meter is used to measure forced expiratory volume, which helps in monitoring asthma. This measurement provides valuable information about how well the client's lungs are functioning and how narrow their airways are. Choice A is incorrect because determining oxygen saturation is typically done using a pulse oximeter. Choice C is incorrect as a peak flow meter is not used to monitor the atmosphere for allergens but rather to assess lung function. Choice D is incorrect as providing metered doses for inhaled bronchodilators is the function of a metered-dose inhaler, not a peak flow meter.

Correct Answer: B

Rationale: The correct answer is B. An overdue menses might indicate a potential cause of abdominal pain, especially in the context of recent emotional stress. While the client's temperature, crying, and soft abdomen are important observations, the priority should be given to the overdue menses as it could provide crucial information related to the abdominal pain and the client's overall health status. The emotional distress may have a secondary impact on the physical symptoms, making the menstrual status a critical observation to address first.

Correct Answer: B

Rationale: The correct answer is B. Petroleum jelly is flammable and should not be used with oxygen therapy as it can increase the risk of fire. Using petroleum jelly near oxygen can lead to a fire hazard. Choices A, C, and D are correct statements that indicate proper understanding of oxygen therapy safety measures. Choice A emphasizes the importance of keeping the oxygen tank upright to prevent leaks, choice C highlights the necessity of avoiding smoking to prevent exacerbation of COPD, and choice D encourages seeking medical help promptly in case of breathing difficulties.