if a patient complains of dizziness which term below best describes this feeling
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ATI Pathophysiology Exam 2

1. If a patient complains of dizziness, which term below best describes this feeling?

Correct answer: D

Rationale: The correct answer is D: 'Symptom.' Dizziness is a symptom because it is a subjective experience reported by the patient. A 'contraindication' refers to a specific situation in which a drug, procedure, or surgery should not be used because it may be harmful. A 'sign' is an objective finding that can be observed or measured. 'Objective data' refers to measurable and observable information about a patient's condition, which is usually obtained through physical examination or diagnostic tests. Therefore, in this case, 'Symptom' is the best term to describe the patient's feeling of dizziness.

2. Which of the following chronic inflammatory skin disorders is characterized by angiogenesis, immune cell activation (particularly T cells), and keratinocyte proliferation?

Correct answer: A

Rationale: Psoriasis is the correct answer. Psoriasis is a chronic inflammatory skin disorder characterized by angiogenesis, immune cell activation (particularly T cells), and keratinocyte proliferation. Choice B, Melanoma, is a type of skin cancer involving melanocytes, not characterized by the features mentioned. Choice C, Atopic dermatitis, is a different inflammatory skin condition associated with pruritus and eczematous lesions, not primarily characterized by angiogenesis. Choice D, Urticaria, is a skin condition characterized by hives and wheals due to histamine release, not typically involving the features mentioned in the question.

3. Which pathophysiologic process causes the decreased glomerular filtration rate in a patient with acute glomerulonephritis?

Correct answer: B

Rationale: The correct answer is B: Immune complex deposition, increased capillary permeability, and cellular proliferation. In acute glomerulonephritis, immune complexes deposit in the glomerulus, leading to inflammation, increased capillary permeability, and cellular proliferation. These processes collectively reduce the glomerular filtration rate. Choices A, C, and D do not accurately describe the pathophysiologic process in acute glomerulonephritis. Decreased renal-induced constriction of the renal arteries, necrosis of nephrons due to increased kidney interstitial hydrostatic pressure, and scar tissue formation in the proximal convoluted tubule are not the primary mechanisms responsible for the decreased filtration rate in this condition.

4. In nephritic syndrome compared to nephrotic syndrome, there is:

Correct answer: C

Rationale: In nephritic syndrome, the presence of red blood cell casts in the urine is a characteristic finding, reflecting glomerular inflammation and damage. This differentiates it from nephrotic syndrome, where red blood cell casts are typically absent. Choice A is incorrect because nephritic syndrome usually presents with less albuminuria compared to nephrotic syndrome. Choice B is incorrect as hematuria is a common feature of nephritic syndrome. Choice D is incorrect as hypoalbuminemia is more commonly associated with nephrotic syndrome.

5. Which of the following statements describes an active cellular membrane exchange process?

Correct answer: A

Rationale: The correct answer is A. In active transport, energy is expended to move substances against their concentration gradient. Sodium moving out of cells and potassium moving into cells is an example of active transport because it requires energy to pump these ions across the cell membrane against their concentration gradients. Choices B, C, and D describe passive processes where substances move along their concentration gradients without the input of energy.

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