Correct Answer: A

Rationale: The correct instruction to prevent back injuries while lifting is to spread your feet apart to provide a wide base of support. This helps in maintaining stability and reduces the risk of back injury. Choice B is incorrect as lifting objects with your back straight and using your legs is the recommended technique. Choice C is incorrect because assistive devices can actually help prevent back injuries by providing support. Choice D is incorrect as bending at the waist to reach objects can strain the back muscles and increase the risk of injury.

Correct Answer: B

Rationale: The correct sequence for administering a large volume enema is as follows: 1. Insert the enema tube into the rectum, 2. Administer the enema solution, 3. Clamp the tube, 4. Remove the tube, 5. Wrap the end with tissue. Therefore, the nurse should remove the enema tube from the client's rectum after administering the enema solution. Choices A, C, and D are incorrect because the enema tube should be removed from the rectum after the administration of the solution, not before or during the process.

Correct Answer: C

Rationale: Chest physiotherapy is essential for clients with amyotrophic lateral sclerosis (ALS) to prevent atelectasis and pneumonia. Chest physiotherapy aids in clearing secretions, maintaining lung function, and preventing respiratory complications. Active and passive range of motion exercises (Choice A) are important for maintaining joint mobility but are not directly associated with preventing atelectasis and pneumonia in ALS. Incentive spirometer use every 4 hours (Choice B) is beneficial for lung expansion and preventing atelectasis but may not be as effective as chest physiotherapy in managing secretions. Repositioning every 2 hours (Choice D) is crucial for preventing pressure ulcers but is not directly related to preventing atelectasis and pneumonia in ALS.

Correct Answer: C

Rationale: Ensuring the water seal chamber is filled to the appropriate level is crucial to maintain the effectiveness of the chest tube drainage system. This step helps prevent air from entering the pleural space, ensuring proper lung re-expansion. 'Milking' the chest tube is not recommended as it can cause damage to the chest tube and surrounding tissues. Clamping the chest tube is not advisable as it can lead to tension pneumothorax. Securing the chest tube to the bed is important for stability but does not directly impact the functioning of the chest tube.

Correct Answer: C

Rationale: The correct answer is C. Offering a variety of foods in small portions is appropriate for a 2-year-old toddler as it helps provide balanced nutrition and allows the child to explore different tastes and textures. Choice A is incorrect because whole milk is recommended up to 2 years old, not until 3 years old. Choice B is incorrect as excessive juice intake can lead to excessive sugar consumption and is not recommended. Choice D is incorrect as popcorn may pose a choking hazard for toddlers and is not a suitable alternative to sweets.