Correct Answer: B

Rationale: The most appropriate action for the nurse to take when performing a physical examination is to wash their hands before and after every physical patient encounter. This practice helps prevent the spread of infection. Hands should also be washed after contact with blood, body fluids, secretions, and excretions, and after contact with any equipment contaminated with body fluids. It is crucial to wash hands after removing gloves, even if the gloves appear intact. Choice A is incorrect because washing hands after removing gloves is necessary to ensure thorough hygiene. Choice C is incorrect because hands should be washed before and after every patient encounter, not just before examining each body system. Choice D is incorrect because gloves should be worn when there is potential contact with body fluids, but they do not need to be worn throughout the entire examination.

Correct Answer: D

Rationale: When examining an infant, the nurse should start by examining the least-distressing areas first before moving on to more invasive areas. The abdomen is typically the least distressing area to examine, so it should be assessed first. Examining the eye, ear, nose, and throat are considered more invasive and should be saved for last. Therefore, the correct choice is to examine the abdomen first to ensure a comfortable and less distressing examination process for the infant. Choices A, B, and C (Ear, Nose, Throat) are more invasive areas and should be examined after the abdomen.

Correct Answer: D

Rationale: Postoperative nursing care after a cholecystectomy focuses on preventing respiratory complications due to the surgical incision being high in the abdomen, which impairs coughing and deep breathing. Turning, coughing, and deep breathing every 2 hours help prevent respiratory complications, such as pneumonia. While choices A, B, and C are also important aspects of postoperative care, they are not as high a priority as ensuring proper ventilation and respiratory function in the immediate postoperative period.

Correct Answer: B

Rationale: In a situation where a patient is in significant respiratory distress, bilaterally percussing the thorax to note any differences in percussion tones is a crucial nursing intervention. Percussion provides instant feedback regarding changes in underlying tissue density, which can give important clues about the patient's physical status. This hands-on assessment technique is readily available and can be performed promptly. Counting the patient's respirations, while important, may not provide as much detailed information as percussion. Ordering a chest x-ray and waiting for the results can cause a delay in assessing and addressing the patient's immediate needs. Inspecting the thorax for new masses and bleeding, although relevant, may not offer as much real-time information about the patient's condition compared to percussion.

Correct Answer: D

Rationale: When assessing a patient experiencing significant shortness of breath, it is crucial to prioritize the evaluation of areas directly related to the problem. Having the patient lie down may exacerbate the breathing difficulty. Therefore, the nurse should focus on examining the body areas pertinent to the issue, such as the respiratory and cardiac systems. Completing the rest of the assessment can be deferred until after addressing the immediate problem. Obtaining a complete history or involving family members should come after addressing the acute issue to ensure the patient's safety and comfort.