Correct Answer: B

Rationale: The ventrogluteal site is the most appropriate and safest site for administering an intramuscular injection to an adult client. It is preferred due to its thick muscle mass and fewer major blood vessels and nerves in the area, reducing the risk of injury or complications. The deltoid muscle is commonly used for vaccines and small-volume injections but may not be suitable for larger volumes. The dorsogluteal site has fallen out of favor due to the risk of injury to the sciatic nerve and other underlying structures. The rectus femoris site is not typically used for intramuscular injections in adults.

Correct Answer: B

Rationale: Corrected Rationale: Assessing skin color is crucial to evaluate perfusion and circulation postoperatively. Skin color changes can indicate compromised circulation, such as pallor or cyanosis. Edema may suggest fluid retention but is not a direct indicator of circulation status. Range of motion is more related to joint function and mobility, not specifically circulation.

Correct Answer: B

Rationale: Setting up the sterile field at waist level is crucial to maintaining its sterility during a dressing change. Choice A is incorrect because sterile gloves should be worn after opening sterile dressing supplies to prevent contamination. Choice C is incorrect as the entire border of the sterile field should be considered contaminated to maintain sterility. Choice D is incorrect because the cap of a sterile solution should never be placed inside the sterile field to prevent contamination.

Correct Answer: C

Rationale: Injuries at the level of the 2nd cervical vertebra can affect the phrenic nerve, leading to potential impairment of respiratory function. Assessing respiratory function is crucial as compromised breathing can quickly escalate to life-threatening situations. While response to stimuli is important, ensuring adequate oxygenation takes precedence due to the immediate threat to life. Bladder control may be affected by spinal cord injuries at higher levels, but it is not the priority in this scenario. Muscle strength is a potential consequence of cervical spinal cord injury, but assessing respiratory function is more critical in the acute phase.

Correct Answer: C

Rationale: The correct position for a client immediately following a liver biopsy is right side-lying with a pillow under the costal margin. This position helps prevent bleeding by applying pressure to the biopsy site. Placing the client supine with the right arm raised above the head (Choice A) or supine with the head of the bed elevated (Choice B) are not ideal positions for post-liver biopsy care as they do not provide the necessary pressure to the biopsy site. Left side-lying with the head of the bed flat (Choice D) is also not recommended as it does not assist in preventing bleeding after a liver biopsy.