Correct Answer: D

Rationale: During endotracheal suctioning, the nurse should apply suctioning while withdrawing and gently rotating the catheter 360 degrees for a short period of 0-5 seconds. This brief duration helps minimize the risk of hypoxia and trauma to the airway. Choices A, B, and C suggest longer time periods for suctioning, which can increase the risk of complications such as hypoxia, mucosal damage, and the removal of excess amounts of airway secretions.

Correct Answer: A

Rationale: In cases of frustrated homicide, the circumstance of 'justifying' is the most applicable. Justifying circumstances are those that exempt the individual from criminal liability because the act is considered morally right or justified under the circumstances. Aggravating circumstances would worsen the offense, mitigating circumstances would lessen the penalty, and exempting circumstances would completely excuse the individual from liability, none of which are suitable in a case of frustrated homicide.

Correct Answer: A

Rationale: The correct answer is 'A: case study.' A case study involves an in-depth examination of a single individual, group, or event. In this scenario, focusing on one boy aligns with the definition of a case study. The other options are not applicable: B) A longitudinal study involves following subjects over a period of time, C) A cross-sectional study examines a population at a single point in time, and D) An evaluative study assesses the effectiveness of a program or intervention, which is not the focus of the given scenario.

Correct Answer: B

Rationale: The correct answer is B. Continuing feeding is a recommended treatment for a child classified with no dehydration. This helps maintain the child's nutritional status and supports recovery. Options A, C, and D are appropriate interventions for a child with no dehydration. Option A ensures adequate fluid intake, option C promotes hydration, and option D ensures appropriate follow-up if the condition worsens.

Correct Answer: B

Rationale: The correct answer is B: Barley. Barley contains gluten, which is harmful to individuals with celiac disease. Gluten triggers an immune response in people with celiac disease, damaging the lining of the small intestine. Choices A, C, and D (Quinoa, Rice, and Oats) are gluten-free and safe for individuals with celiac disease to consume.