Nursing Elites

1. A client with liver failure is at an increased risk of bleeding due to the inability to synthesize prothrombin in the liver. What factor most likely contributes to this loss of function?

• A. Alterations in glucose metabolism
• B. Retention of bile salts
• C. Inadequate production of albumin by hepatocytes
• D. Inability of the liver to use vitamin K

Correct answer: D

Rationale: The correct answer is D. The liver's inability to use vitamin K is the most likely factor contributing to the loss of prothrombin synthesis in liver failure. Vitamin K is essential for the synthesis of prothrombin, a crucial clotting factor. In liver failure, impaired utilization of vitamin K leads to decreased production of prothrombin, increasing the risk of bleeding in affected individuals.

2. A 70-year-old woman presents with fatigue, anorexia, and weight loss. She has noticed darkening of her skin, particularly in sun-exposed areas. Laboratory tests reveal hyponatremia, hyperkalemia, and low cortisol levels. What is the most likely diagnosis?

• A. Cushing's syndrome
• B. Addison's disease
• C. Hypothyroidism
• D. Pheochromocytoma

Correct answer: B

Rationale: The combination of symptoms such as fatigue, anorexia, weight loss, hyperpigmentation of the skin, along with hyponatremia, hyperkalemia, and low cortisol levels, points towards Addison's disease. This condition is characterized by adrenal insufficiency, leading to a deficiency in cortisol and aldosterone production.

3. A patient with cirrhosis of the liver and ascites is scheduled for a paracentesis. What should the nurse do to prepare the patient for the procedure?

• A. Have the patient void immediately before the procedure.
• B. Position the patient upright or semi-Fowler's in bed.
• C. Administer a full liquid diet.
• D. Encourage the patient to ambulate for 30 minutes.

Correct answer: A

Rationale: The correct preparation for a paracentesis in a patient with cirrhosis and ascites includes having the patient void immediately before the procedure. This is important to reduce the risk of bladder puncture during the paracentesis. Positioning for a paracentesis is typically upright or semi-Fowler's, not flat in bed. Administering a full liquid diet or encouraging ambulation for 30 minutes are not directly related to preparing a patient for a paracentesis procedure.

4. A client with hepatic encephalopathy exhibits confusion, difficulty arousing from sleep, and rigid extremities. Based on these clinical findings, what stage of hepatic encephalopathy should the nurse document?

• A. Stage 1
• B. Stage 2
• C. Stage 3
• D. Stage 4

Correct answer: C

Rationale: Stage 3 hepatic encephalopathy is characterized by confusion, difficulty arousing from sleep, and rigidity of extremities. These symptoms indicate advanced manifestations of hepatic encephalopathy, requiring prompt intervention and monitoring to prevent further neurological deterioration.

5. A 30-year-old woman 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 clinical presentation of a 30-year-old woman with fatigue, polyuria, polydipsia, hyperglycemia, and ketonuria is highly suggestive of type 1 diabetes mellitus. Type 1 diabetes mellitus is characterized by autoimmune destruction of pancreatic beta cells, leading to insulin deficiency and subsequent hyperglycemia. The presence of ketonuria indicates the breakdown of fats for energy due to the lack of insulin. In contrast, type 2 diabetes mellitus typically presents with gradual onset and is often associated with insulin resistance rather than absolute insulin deficiency. Diabetes insipidus is characterized by polyuria and polydipsia but is not associated with hyperglycemia or ketonuria. Hyperthyroidism may present with symptoms like fatigue but does not typically cause hyperglycemia or ketonuria.

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