Correct Answer: A

Rationale: Shortness of breath is the main symptom of left-sided heart failure because it results from pulmonary congestion due to fluid buildup in the lungs. Edema, increased heart rate, and decreased urine output are associated with right-sided heart failure rather than left-sided heart failure.

Correct Answer: B

Rationale: The first nursing action when caring for a client with a wound infection is to perform a wound culture before applying antibiotics. This step is crucial to identify the specific infecting organism and determine the most effective antibiotic therapy. Choices A, C, and D are incorrect because changing the dressing, cleansing the wound, or applying a wet-to-dry dressing should only be done after obtaining the culture results and starting appropriate antibiotic treatment.

Correct Answer: A

Rationale: The priority is to determine if the client is experiencing psychotic thinking or suicidal ideation. In this situation, the nurse needs to assess if the client is having distorted thoughts or losing touch with reality, which could pose an immediate risk to the client's safety. While determining the client's support system, asking how the client copes with stress, and assessing vital signs are important aspects of care, they are not the priority when there is a concern about potential psychotic thinking or suicidal ideation.

Correct Answer: B

Rationale: The correct answer is B. Struggling to open a milk carton indicates difficulty with fine motor skills and activities of daily living. This statement suggests a need for assistance from an occupational therapist to improve hand strength, coordination, and independence in performing essential tasks. Choices A, C, and D do not directly relate to the need for occupational therapy services in this context. In contrast, the inability to open a milk carton highlights specific challenges that occupational therapy can address effectively.

Correct Answer: D

Rationale: The key management strategy for diabetic ketoacidosis (DKA) involves a comprehensive approach that includes administering insulin to lower blood glucose levels, monitoring blood glucose levels to ensure they are within the target range, and administering IV fluids to correct dehydration and electrolyte imbalances. Choosing 'All of the above' as the correct answer is the most appropriate because all three interventions are essential components of DKA management. Administering insulin alone without addressing fluid status and monitoring blood glucose could lead to complications. Similarly, solely focusing on IV fluids or blood glucose monitoring without insulin administration would not effectively manage DKA.