Correct Answer: C

Rationale: The correct answer is the Vastus lateralis when giving an intramuscular injection to an infant. The Vastus lateralis muscle, located in the thigh, is the preferred site for infants as it has a larger muscle mass and is well-developed, making it suitable for injections. The Ventrogluteal region and Dorsogluteal region are not recommended for infants due to their smaller muscle mass and potential risk of damaging nearby structures. The Deltoid muscle is typically used for older children and adults, not infants.

Correct Answer: B

Rationale: The correct answer is to consider the possibility of self-harm during the assessment process. This is crucial because unless the client is first assessed for self-harm or suicide potential, the necessary degree of vigilance in the client's environment may not be observed. While understanding the meaning of current stressors is important for treatment planning, ensuring the client's safety takes precedence. Motivation to participate in treatment and the presence of alcohol or other drug use are also important aspects to assess but ensuring the client's safety is the top priority in this scenario.

Correct Answer: D

Rationale: Polyphagia, polyuria, and metabolic acidosis are common clinical signs of diabetes mellitus. Polyphagia refers to excessive hunger, polyuria is excessive urination, and metabolic acidosis can occur due to poorly controlled diabetes. Lower extremity edema, on the other hand, is not a typical clinical sign of diabetes mellitus. Edema in the lower extremities is more commonly associated with conditions like heart failure or kidney disease rather than diabetes mellitus.

Correct Answer: C

Rationale: The correct answer is the presence of breathing and adequacy of breathing. It is crucial to ensure that the client is not only breathing but also breathing adequately. Choices A and D are incorrect as pulse rate and patient position are not the most critical observations when assessing a client's breathing. Pulse rate is more related to assessing circulation, and patient position is important but not as crucial as ensuring the client is breathing and breathing adequately. Choice B is partially correct as breathing pattern is important, but the most critical observation is the adequacy of breathing. Adequacy of breathing ensures that the client is receiving enough oxygen to support proper body function and is the key focus during breathing assessment.

Correct Answer: A

Rationale: During a petit mal seizure, the highest priority is to provide a safe environment free of obstructions in the immediate area. This action aims to prevent injuries to the patient during the seizure. While calling a code or contacting the patient's physician may be necessary at some point, immediate safety measures take precedence. Preventing excessive movement of the extremities is relevant but ensuring a safe environment is crucial to avoid harm during the seizure.