Correct Answer: A

Rationale: Correct! Written consent is required for procedures that carry significant risks, such as blood transfusions, to ensure the client's informed consent and understanding of the procedure. In this case, a transfusion of packed red blood cells is an invasive procedure that carries risks, making it essential to have the client's written consent. Choices B, C, and D do not typically require written consent as routine physical examinations, minor surgical procedures without anesthesia, and new medication prescriptions do not carry the same level of risk and complexity as a blood transfusion.

Correct Answer: B

Rationale: Using a sterile technique throughout the procedure is essential to prevent infection when inserting an IV catheter. This includes maintaining aseptic conditions, using sterile equipment, and following proper hand hygiene practices. Choice A is incorrect because threading the catheter up to the hub does not specifically address infection prevention. Choice C is incorrect as cleaning the insertion site with alcohol only may not provide adequate disinfection, as it is essential to use an antiseptic solution to reduce microbial load. Choice D is incorrect as wearing gloves alone is not sufficient protection against infection; a mask should also be worn to prevent the spread of microorganisms through respiratory secretions.

Correct Answer: A

Rationale: Placing the wheelchair at a 45-degree angle to the bed is the correct technique for transferring a client who is unable to walk from bed to a wheelchair. This positioning facilitates a safer and easier transfer by providing more space for maneuvering and reducing the distance the client needs to be moved. Positioning the wheelchair parallel to the bed (Choice B) may make the transfer more challenging due to limited space and a longer distance to move the client. Placing the wheelchair in front of the bed (Choice C) may not provide an optimal angle for the transfer. Having the client stand and pivot into the wheelchair (Choice D) is not appropriate for a client who is unable to walk and could increase the risk of falls or injuries during the transfer.

Correct Answer: D

Rationale: Crepitus around the chest tube insertion site may indicate subcutaneous emphysema, a serious condition that requires immediate attention. It can be a sign of an air leak in the lung or surrounding tissues. Constant bubbling in the suction control chamber is expected in a functioning chest tube system as it indicates proper suction. Intermittent bubbling in the water seal chamber is also normal, showing that the system is functioning correctly, allowing air to escape but not re-enter. Drainage of 50 ml per hour is within the expected range for chest tube output and does not require immediate intervention unless there are other concerning signs such as rapid increase or a sudden change in color or consistency.

Correct Answer: A

Rationale: When admitting a client with an abdominal wound, contact precautions should be implemented. Contact precautions are used to prevent the spread of infections that are spread by direct or indirect contact. In the case of abdominal wounds, bacteria and pathogens can easily be transmitted through contact with the wound or wound drainage. Droplet precautions are used for infections transmitted through respiratory droplets, such as influenza. Airborne precautions are used for infections spread through the air, like tuberculosis. Standard precautions are used for all clients to prevent the spread of infections and should be followed in addition to specific precautions based on the type of infection.