ATI LPN
Medical Surgical Endocrine Questions Questions
Question 1 of 5
A 26-year-old man developed sudden severe abdominal pain. On physical examination, he had marked abdominal tenderness and guarding. Laboratory studies showed serum glucose, 76 mg/dL; calcium, 12.2 mg/dL; phosphorus, 2.6 mg/dL; creatinine, 1.1 mg/dL; and parathyroid hormone, 62 pg/mL (normal range 9 to 60 pg/mL). During surgery, four enlarged parathyroid glands were found and excised, with reimplantation of one half of one gland. After the surgery, his serum calcium concentration returned to normal. Three years later, he had an episode of upper gastrointestinal hemorrhage. An endoscopy and biopsy specimen showed multiple benign gastric ulcerations. Abdominal MRI indicated multiple 1- to 2-cm mass lesions in the pancreas. He underwent surgery, and multiple tumors were found. Which of the following additional neoplasm lesions is he most likely to have?
Correct Answer: C
Rationale: Multiple endocrine neoplasia (MEN) type 1 is also known as Wermer syndrome. (Remember the 'three P's' in neoplasia or hyperplasia "pancreas, pituitary, and parathyroids.) Adrenal pheochromocytomas are associated with MEN 2B. Endometrial carcinomas can arise in patients who have unopposed estrogen secretion, which can occur in estrogen-producing ovarian tumors.
Question 2 of 5
Which statement is false regarding blood flow and phase of the cardiac cycle?
Correct Answer: D
Rationale: When pulmonary artery pressure is lower than ventricle, blood flows out (systole).
Question 3 of 5
The common pathway of coagulation ends with the:
Correct Answer: D
Rationale: Fibrin forms the clot, ending the common pathway.
Question 4 of 5
Activated c3b to the cell wall of an infected cell or pathogen is the end-result of which of the following pathway(s)?
Correct Answer: D
Rationale: All three complement pathways (classical, lectin, alternative) converge to activate C3b.
Question 5 of 5
Which of the following factors would decrease the amount of oxygen discharged by hemoglobin to peripheral tissues?
Correct Answer: D
Rationale: Decreased BPG shifts O2 curve left, reducing O2 release; others enhance unloading.