The nurse is caring for a young adult who reports uncontrolled acne vulgaris. Which pathological findings should the nurse observe on inspection of skin areas commonly affected in acne vulgaris?

Small, skin-colored, pedunculated papules in areas of skin folds and on other areas as skin tags

Hyperpigmented areas that vary in form and color and are slightly elevated from the skin.

Hyperactive sebaceous areas forming comedones, papules, pustules on the face, neck, and upper back.

Sharply demarcated silvery scaling plaques with underlying redness on the elbows and knees.

Answer and Explanation

The Correct Answer is C

A) Small, skin-colored, pedunculated papules in areas of skin folds and on other areas as skin tags:

This description is more characteristic of acrochordons (skin tags), which are benign skin growths often found in skin folds. Skin tags are typically not associated with acne vulgaris.

B) Hyperpigmented areas that vary in form and color and are slightly elevated from the skin:

This description may be indicative of post-inflammatory hyperpigmentation, which can occur after resolution of acne lesions. However, it does not represent the primary pathological findings observed in acne vulgaris.

C) Hyperactive sebaceous areas forming comedones, papules, pustules on the face, neck, and upper back:

Correct. Acne vulgaris is characterized by hyperactive sebaceous glands, leading to the formation of comedones (blackheads and whiteheads), papules, and pustules. These lesions commonly occur on the face, neck, and upper back due to the high density of sebaceous glands in these areas.

D) Sharply demarcated silvery scaling plaques with underlying redness on the elbows and knees:

This description is more indicative of psoriasis, a chronic autoimmune skin condition characterized by silvery scaling plaques and inflammation. Psoriasis typically affects extensor surfaces such as the elbows and knees, rather than the areas commonly affected by acne vulgaris.

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Correct Answer is C

Explanation

DKA is a serious complication of diabetes mellitus characterized by hyperglycemia, ketosis, and metabolic acidosis. The laboratory results consistent with DKA include:

Elevated blood glucose level: A blood glucose level of 525 mg/dL (28 mmol/L) is significantly elevated and consistent with DKA.

Low arterial blood pH: A decreased arterial blood pH indicates acidosis, which is characteristic of DKA. Normal arterial blood pH ranges from 7.35 to 7.45.

Low bicarbonate (HCO3-) level: A low bicarbonate level indicates metabolic acidosis, which is also characteristic of DKA. Normal bicarbonate levels range from 21 to 28 mEq/L (21 to 28 mmol/L).

Among the options provided:

A) Arterial blood pH 7.5 and bicarbonate level 32 mEq/L (32 mmol/L):

This pH and bicarbonate level are indicative of alkalosis, which is not consistent with DKA.

B) Arterial blood pH 7.42 and bicarbonate level 18 mEq/L (18 mmol/L):

This pH is within the normal range, and the bicarbonate level is slightly decreased but not indicative of metabolic acidosis consistent with DKA.

C) Arterial blood pH 7.25 and bicarbonate level 10 mEq/L (10 mmol/L):

Correct. This pH is decreased, indicating acidosis, and the bicarbonate level is significantly below the normal range, consistent with metabolic acidosis characteristic of DKA.

D) Arterial blood pH 7.38 and bicarbonate level 29 mEq/L (29 mmol/L):

While the pH is within the normal range, the bicarbonate level is elevated, which is not consistent with metabolic acidosis seen in DKA.

A. Produce the sensation of Itching. B. Tighten airway and produce mucous. C. Causes formation of bradykinin. D. Serves as receptor for antigen.

Correct Answer is B

Explanation

Leukotrienes are inflammatory mediators derived from arachidonic acid metabolism, primarily produced by leukocytes (white blood cells) such as mast cells, eosinophils, and basophils. In the context of asthma, leukotrienes play a significant role in the pathophysiology of the disease by contributing to airway inflammation and bronchoconstriction. Here's a breakdown of their immune response:

A) Produce the sensation of itching:

Leukotrienes are not directly involved in producing the sensation of itching. Itching is often associated with histamine release rather than leukotrienes.

B) Tighten airway and produce mucous:

Correct. Leukotrienes are potent bronchoconstrictors that cause smooth muscle contraction in the airways, leading to narrowing (constriction) of the bronchioles. Additionally, they stimulate the secretion of mucus from goblet cells in the airway epithelium, contributing to airway obstruction and mucus production, which are characteristic features of asthma exacerbations.

C) Causes formation of bradykinin:

Bradykinin is a peptide mediator that is generated from the plasma protein kininogen and is involved in vasodilation, pain sensation, and inflammation. Leukotrienes are not directly responsible for the formation of bradykinin.

D) Serves as a receptor for antigen:

Leukotrienes do not serve as receptors for antigens. Instead, they are lipid mediators released in response to various stimuli, including allergens, infections, and irritants, and they act on specific receptors (e.g., leukotriene receptors) to exert their effects, such as bronchoconstriction and inflammation

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The nurse is caring for a young adult who reports uncontrolled acne vulgaris. Which pathological findings should the nurse observe on inspection of skin areas commonly affected in acne vulgaris?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is C

Explanation

A client who has asthma (a reactive airway disease) asks the nurse about the role of leukotrienes in this process. Leukotrienes have which immune response?

Correct Answer is B

Explanation

A client reports experiencing blurry central vision that has recently worsened. Which pathological process supports the client's subjective report?

A client is being treated for a gastric ulcer caused by Heliobacter pylori. The nurse should prepare the client for long term follow-up to which associated problem?

The development of atherosclerosis is a process of sequential events. Arrange the pathophysiological events in order of occurrence. Place the first event on top, and the last on the bottom.

Which physiological process supports the exchange of blood concentrations across a semipermeable membrane in the hemodialysis?

The nurse admits a client with sepsis and has developed cool ecchymotic fingertips and toes. The healthcare provider determines that the client has developed disseminated intravascular coagulation (DIC). Which findings support the pathophysiology of DIC?

When developing a teaching plan for a client with peripheral artery disease, the nurse should explain that intermittent claudication occurs as the result of which underlying pathophysiology?