What does the term dilate mean?

Correct Answer: D

Rationale: The correct answer is D: Widen or open. When an object dilates, it increases in size while maintaining its proportions. This is typically seen in geometry when scaling a figure up or down. Choice A is incorrect because dilate means to expand, not contract. Choice B is also incorrect as dilating does not involve speeding up. Choice C is wrong because dilating does not involve slowing down but rather expanding. The term dilate specifically refers to widening or opening up, making choice D the correct answer.

Correct Answer: C

Rationale: The correct answer is C: Continuous bladder irrigation. Following surgery, continuous bladder irrigation is typically ordered to flush out a urinary catheter and prevent blockages or infections. This process involves a continuous flow of sterile solution into the bladder through the catheter. The solution helps to keep the catheter clear and maintain urinary drainage. A: Indwelling catheter care involves routine maintenance and cleaning of the catheter but does not involve flushing out the catheter with a continuous flow of solution. B: Straight catheterization is a one-time procedure to drain the bladder and is not used for continuous flushing of the catheter. D: Bladder retraining is a technique used to improve bladder control and does not involve flushing out a urinary catheter.

Correct Answer: C

Rationale: The correct answer is C: Gangrene. Gangrene refers to the death of body tissue due to a lack of blood supply or bacterial infection. Eczema (choice A) is a skin condition characterized by inflammation and itching, not tissue death. Hematoma (choice B) is a collection of blood outside of blood vessels. Psoriasis (choice D) is a chronic autoimmune skin condition, not related to tissue death. Therefore, the term "gangrene" specifically describes the death of tissue, making it the correct answer.

Correct Answer: B

Rationale: The correct answer is B: Trachea. The trachea is an air passage that connects the pharynx to the bronchi, allowing air to pass into the lungs. The epiglottis (choice A) is a flap of tissue that prevents food from entering the trachea during swallowing. Sphincter (choice C) refers to a ring-like muscle that controls the opening and closing of a passage, not an air passage itself. Ventricle (choice D) is a term used in the context of the heart for one of the chambers that pumps blood, not related to the air passage.

Correct Answer: C

Rationale: The correct answer is C: Pupil. The pupil is the part of the eye that opens and closes to regulate the amount of light entering the eye. It is controlled by the iris, which is a circular muscle surrounding the pupil. The other choices, A: Sclera, is the white outer layer of the eye that provides structure and protection. B: Iris, controls the size of the pupil and gives the eye its color. D: Cornea, is the transparent outer layer that helps focus incoming light onto the retina. Thus, the correct answer is C as it directly relates to the function of adjusting to light.