ATI RN
Physical Examination and Health Assessment 8th Edition Test Bank Questions
Question 1 of 5
A 25-year-old type 1 diabetic clerk presents to the emergency room with shortness of breath and states that his blood sugar was 605 at home. You diagnose the patient with diabetic ketoacidosis. What is the expected pattern of breathing?
Correct Answer: C
Rationale: In diabetic ketoacidosis (DKA), the body is in a state of metabolic acidosis due to the accumulation of ketones in the blood. One of the compensatory mechanisms to decrease the acidity in the body is increased breathing, known as Kussmaul breathing. This type of breathing is characterized by a rapid and deep pattern to blow off excess carbon dioxide and decrease the acidity of the blood. Therefore, in a patient with DKA, you would expect to observe rapid and deep breathing.
Question 2 of 5
A 19-year-old construction worker presents for evaluation of a rash. He notes that it started on his back with a multitude of spots and is also on his arms, chest, and neck. It itches a lot. He does sweat more than before because being outdoors is part of his job. On physical examination, you note dark tan patches with a reddish cast that has sharp borders and fine scales, scattered more prominently around the upper back, chest, neck, and upper arms as well as under the arms. Based on this description, what is your most likely diagnosis?
Correct Answer: B
Rationale: The description of dark tan patches with a reddish cast that have sharp borders and fine scales, especially more prominent on the upper back, chest, neck, and upper arms, is classic for tinea versicolor. Tinea versicolor is a superficial fungal infection caused by Malassezia species, which commonly affects individuals who sweat more, such as those working outdoors like the construction worker in this case. The rash is often pruritic (itchy) and can vary in color from tan to pink or red. The fine scales on the patches are a result of the accumulation of the yeast in the affected areas.
Question 3 of 5
Mrs. Anderson presents with an itchy rash which is raised and appears and disappears in various locations. Each lesion lasts for many minutes. What most likely accounts for this rash?
Correct Answer: B
Rationale: Urticaria, commonly known as hives, typically presents as raised, red, and itchy welts or wheals that can appear and disappear in various locations on the skin. Each lesion tends to last for many minutes before resolving and may be associated with itching or a burning sensation. Urticaria is often triggered by an allergic reaction to food, medications, insect bites, or other substances. The clinical presentation described in the question, involving an itchy rash that appears and disappears in different areas, is consistent with urticaria.
Question 4 of 5
A 15-year-old high school sophomore presents to the emergency room with his mother for evaluation of an area of blood in the left eye. He denies trauma or injury but has been coughing forcefully with a recent cold. He denies visual disturbances, eye pain, or discharge from the eye. On physical examination, the pupils are equal, round, and reactive to light, with a visual acuity of 20/20 in each eye and 20/20 bilaterally. There is a homogeneous, sharply demarcated area at the lateral aspect of the base of the left eye. The cornea is clear. Based on this description, what is the most likely diagnosis?
Correct Answer: D
Rationale: A subconjunctival hemorrhage is a common and benign condition characterized by blood in the space between the conjunctiva and sclera of the eye. The condition often presents as a painless, sharply demarcated area of redness on the white part of the eye, typically without associated discharge or visual disturbances. In this case, the absence of eye pain, discharge, visual disturbances, and clear cornea make subconjunctival hemorrhage the most likely diagnosis. The history of forceful coughing with a recent cold is also consistent with the increased intraocular pressure leading to a rupture of a small blood vessel, resulting in the hemorrhage. Treatment is not usually required as the condition is self-limiting and resolves on its own over time.
Question 5 of 5
A patient is assigned a visual acuity of 20/100 in her left eye. Which of the following is true?
Correct Answer: C
Rationale: In the context of visual acuity, the numbers in the ratio 20/100 represent a comparison between the patient's vision and normal vision. Specifically, a visual acuity of 20/100 means that the patient can see at 20 feet what a person with normal vision can see at 100 feet. This indicates that the patient's vision is reduced, as she needs to be closer to see the same level of detail compared to someone with normal vision.