The nurse working in a postoperative surgical clinic is assessing a woman who had a left radical mastectomy for breast cancer. Which factor puts this client at greatest risk for developing lymphedema? 

Choice A rationale: Low blood pressure sensed by baroreceptors in the kidneys would stimulate the renin-angiotensin-aldosterone system, which regulates blood pressure and sodium balance.

Choice B rationale: Low osmolality sensed by osmoreceptors in the kidneys would

indicate that the body has excess water and needs to excrete it, which would inhibit ADH release.

Choice C rationale: ADH, or antidiuretic hormone, is a peptide hormone that regulates the water balance in the body. It is released from the posterior pituitary gland in response to signals from the hypothalamus. When the plasma osmolarity, or the concentration of solutes in the blood, is high, it means that the body is dehydrated and needs to conserve water. The osmoreceptors in the hypothalamus detect this change and stimulate the release of ADH, which acts on the kidneys to increase water

reabsorption and decrease urine output. This helps to lower the plasma osmolarity and restore the water balance.

Choice D rationale: High concentration of potassium sensed by chemoreceptors in the carotid body would affect the acid-base balance and respiratory rate, but not ADH

release.

Choice A rationale: Not a typical characteristic of Crohn's disease; more associated with conditions like rectal fistulas.

Choice B rationale: Crohn's disease commonly involves diarrhea rather than chronic constipation.

Choice C rationale: A common symptom of Crohn's disease due to inflammation and malabsorption in the intestines.

Choice D rationale: Crohn's disease typically presents with diarrhea but not necessarily alternating with constipation. Constipation alternating with diarrhea may also occur in irritable bowel syndrome.