In qualitative research, a guiding principle in deciding sample size is:

Correct Answer: C

Rationale: The correct answer is C: Data saturation. In qualitative research, data saturation is the point where new data no longer brings additional insights or changes in themes. This principle guides sample size determination as it ensures enough data is collected to reach this saturation point, leading to a comprehensive understanding of the phenomenon under study. Effect size (A) is more relevant in quantitative research, while the number of variables (B) and sub-group analysis (D) are factors that may influence the complexity of the study but are not directly related to determining sample size in qualitative research.

Correct Answer: A

Rationale: The correct answer is A: Continue to monitor the client without taking any action. The ABG results indicate a pH within the normal range (7.35-7.45), PaO2 is slightly lower than normal but still adequate for tissue oxygenation, PaCO2 is within the normal range (35-45), and HCO3 is normal (22-26). These values indicate that the client's acid-base balance is within normal limits, and no immediate intervention is needed. Encouraging deep breaths and coughing (B) may be beneficial for some respiratory conditions but is not indicated here. Administering sodium bicarbonate IVP (C) is unnecessary as the client's pH and HCO3 levels are normal. Notifying the respiratory therapist (D) is not warranted since the ABG results do not indicate any acute respiratory distress. Monitoring the client (A) is the appropriate action as the ABG results are stable.

Correct Answer: B

Rationale: The correct answer is B: At the right eye. OD stands for "oculus dexter," which is Latin for right eye. In medicine, OD is used to specify which eye to apply medication to. The other choices are incorrect because A refers to the left eye, C is not a standard eye designation in medical terminology, and D is an incomplete option. Always remember to follow medical conventions and terminology for accurate and precise communication.

Correct Answer: A

Rationale: The correct answer is A: Make patient tired before sleeping. This is because physical and mental exhaustion can improve sleep quality. By engaging in activities that make the patient tired, such as exercise or mental stimulation, they are more likely to fall asleep faster and have a deeper, more restful sleep. Providing milk, as in choice B, may be relaxing for some individuals, but it is not a guaranteed method to improve sleep comfort. Choice C and D are left blank, as they do not offer any relevant information related to improving sleep comfort.

Correct Answer: A

Rationale: The correct answer is A: Follow the curve. This is because nails naturally grow in a curved shape, so cutting them following the curve helps prevent ingrown nails and maintains the nail's natural shape. Cutting straight (option B) can increase the risk of ingrown nails and discomfort. Options C and D are incomplete, so they are incorrect choices. Following the curve when cutting nails is the most effective and safe approach for maintaining healthy nails.