Correct Answer: A

Rationale: Grouping and crossmatching is the procedure performed prior to a blood transfusion to determine the blood type and identify any potential incompatibilities between the donor and recipient. This process involves testing the recipient's blood for ABO and Rh antigens and crossmatching it with the donor's blood to ensure compatibility and prevent adverse reactions during the transfusion. Complete blood count, D-dimer test, and blood clotting test are other laboratory tests that serve different purposes and are not specifically done to detect incompatibilities prior to blood transfusion.

Correct Answer: B

Rationale: Tracheostomy is the process of surgically creating an airway in the front of the neck to aid in breathing or remove secretions from the airway. Bronchoscopy involves visualizing the airways using a scope, not creating an airway. Thoracentesis is the procedure to remove fluid or air from the pleural space around the lungs, not related to creating an airway. Underwater seal drainage is a method used in chest drainage systems to remove air or fluid from the pleural space, not the creation of an airway.

Correct Answer: B

Rationale: Advocating for patients' health needs is a crucial skill for nurses in community health as it involves standing up for and promoting the well-being and rights of individuals within the community. While providing direct patient care, educating about health promotion, and managing chronic conditions are important aspects of nursing in community health, advocacy plays a vital role in ensuring that patients receive the necessary care, support, and resources to improve their health outcomes.

Correct Answer: B

Rationale: Low literacy levels among patients present a common challenge in promoting health literacy. When individuals have low literacy levels, it becomes difficult for them to understand health information, leading to barriers in effectively promoting health literacy.

Correct Answer: B

Rationale: The correct answer is B: 'Encouraging healthy behaviors.' Health promotion focuses on empowering individuals and communities to take control of their health by promoting healthy behaviors and lifestyles. This approach involves education, creating supportive environments, and advocating for policies that enhance well-being. It goes beyond simply treating illness or preventing diseases, emphasizing a proactive and holistic approach to achieving and maintaining good health.