Correct Answer: D

Rationale: The correct answer is D: mandible. The temporomandibular joint is located just below the temporal artery and it connects the mandible (lower jaw) to the temporal bone. This joint allows for movement of the jaw during actions like chewing and speaking. Choices A, B, and C are incorrect because the temporomandibular joint is not located near the hyoid bone (A), the vagus nerve (B), or the tragus of the ear (C). These structures are not directly associated with the temporomandibular joint's anatomical location and function.

Correct Answer: D

Rationale: The correct answer is D, an ulceration with rolled edges on the side of the tongue, as it could indicate a possible malignancy such as oral cancer. The presence of rolled edges is concerning for malignancy due to the irregularity in shape and potential for rapid growth. This finding should be promptly investigated to rule out cancer. A: A painful vesicle inside the cheek for 2 days is likely a benign condition such as a canker sore. B: The presence of moist, nontender Stenson's ducts is a normal finding in the mouth. C: Stippled gingival margins that adhere snugly to the teeth could indicate a healthy gum tissue attachment. In summary, the other choices are less concerning as they are either benign or normal variations, while the presence of an ulceration with rolled edges raises significant suspicion for malignancy.

Correct Answer: A

Rationale: The correct answer is A: An optic disc that is a yellow-orange colour. This is a normal finding because the optic disc typically appears yellow-orange due to the presence of nerve fibers. The yellow-orange color is due to the absence of blood vessels in this area. This is a normal anatomical characteristic of the optic disc. Option B is incorrect because blurred optic disc margins can indicate pathology such as papilledema. Option C is incorrect because the presence of pigmented crescents in the macular area can indicate a condition like myopic degeneration, not a normal finding. Option D is incorrect because the macula is normally located temporally, not nasally, to the optic disc.

Correct Answer: C

Rationale: The correct answer is C because the nurse should use the Snellen chart positioned 6.1 m (20 ft) away to assess visual acuity. This is the standard method for testing distance vision. The nurse should ask the patient to read the letters on the chart from the top row down, covering one eye at a time if necessary. This method provides an accurate measurement of visual acuity at a distance. A: Performing the confrontation test assesses visual fields, not visual acuity. B: Using a Jaeger card is for near vision testing, not distance visual acuity. D: Assessing the ability to read newsprint at a close distance does not provide an accurate measurement of visual acuity at a distance.

Correct Answer: D

Rationale: The correct answer is D because intraocular pressure is primarily determined by the amount of aqueous humor produced and the resistance to its outflow at the angle of the anterior chamber. When there is an imbalance in the production and outflow of aqueous humor, it can lead to an increase in intraocular pressure, which can result in conditions like glaucoma. Choices A, B, and C are incorrect because they do not directly influence intraocular pressure. The thickness or bulging of the lens (A) is related to accommodation for near vision, the posterior chamber accommodating fluid (B) is not a primary factor in determining intraocular pressure, and the contraction of the ciliary body (C) affects the shape of the lens for focusing rather than intraocular pressure regulation.