The nurse is caring for a client who is admitted with polycystic kidney disease (PKD), flank pain, and hematuria. The client's blood pressure is 180/100 mm Hg. Which pathophysiological process supports the client's blood pressure finding?

Intravascular fluid deficit.

Renin angiotensin mechanism.

Inflammatory process of bladder mucosa.

Mineral precipitation in urine.

Answer and Explanation

The Correct Answer is B

Polycystic kidney disease (PKD) is a genetic disorder characterized by the formation of multiple fluid-filled cysts in the kidneys. One of the complications associated with PKD is hypertension, which often occurs due to activation of the renin-angiotensin-aldosterone system (RAAS). Here's how the pathophysiological process of the RAAS contributes to the client's elevated blood pressure:

A) Intravascular fluid deficit:

In polycystic kidney disease, the development of multiple cysts in the kidneys can impair renal function and lead to decreased filtration and reabsorption capacity. However, this impairment typically leads to fluid retention rather than intravascular fluid deficit, contributing to hypertension rather than hypotension.

B) Renin angiotensin mechanism:

Correct. In PKD, the cysts disrupt normal kidney architecture and function, leading to activation of the renin-angiotensin-aldosterone system (RAAS). Reduced renal blood flow and glomerular filtration rate (GFR) stimulate the release of renin from the juxtaglomerular cells of the kidneys. Renin acts on angiotensinogen to convert it into angiotensin I, which is then converted to angiotensin II by angiotensin-converting enzyme (ACE). Angiotensin II is a potent vasoconstrictor that increases peripheral vascular resistance, leading to elevated blood pressure. Additionally, angiotensin II stimulates the secretion of aldosterone, which promotes sodium and water retention, further contributing to hypertension.

C) Inflammatory process of bladder mucosa:

This option is not directly related to the pathophysiological process of hypertension in polycystic kidney disease. Flank pain and hematuria in PKD are often associated with cyst rupture or hemorrhage within the cysts rather than an inflammatory process of the bladder mucosa.

D) Mineral precipitation in urine:

Mineral precipitation in urine, such as the formation of kidney stones, can occur in polycystic kidney disease but is not directly associated with hypertension. Kidney stones may contribute to flank pain and hematuria but do not typically cause systemic hypertension.

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Correct Answer is C

Explanation

Acne vulgaris is a common skin condition characterized by various types of lesions, including comedones, papules, and pustules, primarily affecting areas with a high density of sebaceous glands, such as the face, neck, chest, and upper back. Here's why option C is the correct choice:

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 or skin tags, which are benign skin growths commonly found in areas of friction or skin folds. Skin tags are not typically associated with acne vulgaris.

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

This description suggests post-inflammatory hyperpigmentation, which can occur after resolution of inflammatory lesions in acne vulgaris. However, it does not capture the primary pathological findings observed in active acne lesions.

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

Correct. Acne vulgaris is characterized by the formation of various lesions, including comedones (open and closed), papules, and pustules, resulting from the obstruction of hair follicles and overactivity of sebaceous glands. These lesions typically appear on areas with a high density of sebaceous glands, such as the face, neck, chest, and upper back.

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 sharply demarcated, raised, silvery scaling plaques commonly affecting extensor surfaces such as the elbows and knees. Psoriasis lesions are distinct from those seen in acne vulgaris.

A. Blockage of retinal capillaries causing ischemic damage of the central macular area. B. Opaque spoke-like lines developing in the periphery of the lens to the center. C. Tears in the retina that detach from the lining of the posterior eyeball. D. An increase in intraocular pressure with loss of peripheral vision.

Correct Answer is A

Explanation

A) Blockage of retinal capillaries causing ischemic damage of the central macular area:

Correct. Blurry central vision that worsens over time can be indicative of macular ischemia, often caused by blockage of retinal capillaries leading to ischemic damage of the central macular area. This condition can occur in diseases such as diabetic retinopathy or retinal vein occlusion.

B) Opaque spoke-like lines developing in the periphery of the lens to the center:

This description is more characteristic of cataracts, which cause visual disturbances such as glare or halos around lights rather than blurry central vision.

C) Tears in the retina that detach from the lining of the posterior eyeball:

Retinal tears and subsequent detachment can cause visual disturbances, but they typically present as sudden onset of floaters, flashes of light, and a curtain-like shadow over the visual field rather than blurry central vision.

D) An increase in intraocular pressure with loss of peripheral vision:

This description is indicative of glaucoma, which can lead to loss of peripheral vision (visual field defects) rather than blurry central vision. Glaucoma-related visual field loss usually begins peripherally and progresses inward, affecting central vision in later stages.

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The nurse is caring for a client who is admitted with polycystic kidney disease (PKD), flank pain, and hematuria. The client's blood pressure is 180/100 mm Hg. Which pathophysiological process supports the client's blood pressure finding?

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