Nursing Elites

1. Which of the following statements is true about ischemic colitis?

• A. Typically requires colonic resection
• B. Affects the watershed areas of the colon, namely, the splenic flexure, right colon, and rectum
• C. Is only seen in the elderly
• D. Requires colonoscopic intervention

Correct answer: B

Rationale: Ischemic colitis most often results from low-flow states associated with hypotension or poor perfusion. As a result, the vascular watershed areas of the colon, including the splenic flexure, right colon, and rectum, are at highest risk of ischemic injury. Therefore, option B is correct as it accurately identifies the areas commonly affected by ischemic colitis.

2. A 35-year-old woman presents with fatigue, weight gain, and cold intolerance. Laboratory tests reveal high TSH and low free T4 levels. What is the most likely diagnosis?

• A. Hypothyroidism
• B. Hyperthyroidism
• C. Thyroiditis
• D. Thyroid cancer

Correct answer: A

Rationale: The scenario describes a 35-year-old woman with symptoms of fatigue, weight gain, and cold intolerance along with high TSH and low free T4 levels. These findings are consistent with the diagnosis of hypothyroidism. In hypothyroidism, there is decreased thyroid hormone production leading to elevated TSH levels as the body tries to stimulate the thyroid to produce more hormone. The low free T4 levels indicate insufficient thyroid hormone in the blood, which can manifest as symptoms such as fatigue, weight gain, and cold intolerance.

3. A client with a history of hypertension is prescribed lisinopril (Prinivil). Which side effect should the nurse monitor for?

• A. Dry cough.
• B. Weight gain.
• C. Tachycardia.
• D. Hyperglycemia.

Correct answer: A

Rationale: The correct answer is A: Dry cough. Lisinopril is an ACE inhibitor, and a common side effect of ACE inhibitors is a dry cough. This occurs due to the accumulation of bradykinin in the lungs, leading to irritation and subsequent cough. It is important for the nurse to monitor the client for this side effect as it can affect adherence to the medication regimen. Weight gain, tachycardia, and hyperglycemia are not typically associated with lisinopril. Therefore, choices B, C, and D are incorrect.

4. The nurse is caring for a client with a history of deep vein thrombosis (DVT) who is receiving warfarin (Coumadin). Which laboratory value should the nurse monitor closely?

• A. Platelet count.
• B. Prothrombin time (PT).
• C. Hemoglobin level.
• D. White blood cell count.

Correct answer: B

Rationale: Prothrombin time (PT) is monitored to ensure therapeutic levels of warfarin and prevent bleeding complications.

5. A 60-year-old man presents with fatigue, polyuria, and polydipsia. Laboratory tests reveal hyperglycemia and ketonuria. What is the most likely diagnosis?

• A. Type 1 diabetes mellitus
• B. Type 2 diabetes mellitus
• C. Diabetes insipidus
• D. Hyperthyroidism

Correct answer: A

Rationale: The presentation of a 60-year-old man with fatigue, polyuria, polydipsia, hyperglycemia, and ketonuria strongly suggests type 1 diabetes mellitus. Type 1 diabetes typically presents with acute symptoms due to absolute insulin deficiency, leading to hyperglycemia and ketonuria. Conversely, type 2 diabetes often presents more insidiously and is associated with relative insulin deficiency and insulin resistance. Diabetes insipidus, a condition characterized by excessive thirst and excretion of large amounts of dilute urine, is due to problems with antidiuretic hormone (ADH) and is not associated with hyperglycemia or ketonuria. Hyperthyroidism, while also presenting with symptoms like fatigue, does not typically manifest with hyperglycemia or ketonuria. Therefore, based on the clinical presentation and laboratory findings, the most likely diagnosis in this case is type 1 diabetes mellitus.

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