Nursing Elites

1. A 45-year-old woman presents with fatigue, weight gain, and constipation. 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 combination of high TSH and low free T4 levels is consistent with hypothyroidism, which matches the patient's symptoms of fatigue, weight gain, and constipation. In hypothyroidism, the thyroid gland does not produce enough thyroid hormones, leading to a decrease in metabolic rate and resulting in these clinical findings.

2. A patient with heart failure is prescribed digoxin. What is the most important instruction the nurse should provide?

• A. Take an extra dose if you miss one.
• B. Avoid high-potassium foods.
• C. Report any visual disturbances.
• D. Stop taking the medication if your pulse is normal.

Correct answer: C

Rationale: The correct answer is C: 'Report any visual disturbances.' Patients taking digoxin should be instructed to report any visual disturbances, as this can be a sign of digoxin toxicity. Visual disturbances like changes in color vision, blurred vision, or seeing halos around lights can indicate an overdose of digoxin. Choices A, B, and D are incorrect. Instructing a patient to take an extra dose if they miss one can lead to overdose. Avoiding high-potassium foods is important for patients on potassium-sparing diuretics, not digoxin. Stopping the medication if the pulse is normal is incorrect, as the pulse rate alone is not an indicator of digoxin effectiveness or toxicity.

3. What is the primary cause of jaundice in a client with liver cirrhosis?

• A. Decreased bile production
• B. Increased bilirubin levels
• C. Hepatic inflammation
• D. Portal hypertension

Correct answer: B

Rationale: Jaundice in a client with liver cirrhosis is primarily caused by increased bilirubin levels. In liver cirrhosis, impaired liver function leads to the accumulation of bilirubin in the blood, resulting in jaundice. Bilirubin is a yellow pigment produced from the breakdown of red blood cells, and its elevation is a common manifestation of liver dysfunction. Choices A, C, and D are incorrect. While decreased bile production can contribute to jaundice, in liver cirrhosis, the key factor is the buildup of bilirubin due to liver dysfunction, not a decrease in bile production. Hepatic inflammation and portal hypertension are associated with liver cirrhosis but are not the primary causes of jaundice in this context.

4. A patient with rheumatoid arthritis is prescribed methotrexate. What is an important teaching point for the nurse to provide?

• A. Take folic acid supplements as prescribed.
• B. Avoid alcohol completely.
• C. Expect to see immediate results.
• D. Limit fluid intake to 1 liter per day.

Correct answer: A

Rationale: The correct teaching point for a patient prescribed methotrexate is to take folic acid supplements as prescribed. Methotrexate can lead to a folate deficiency, which is why supplementing with folic acid is essential to reduce the risk of side effects such as mouth sores, nausea, and liver problems.

5. A 40-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 combination of symptoms including fatigue, polyuria, polydipsia, along with laboratory findings of hyperglycemia and ketonuria strongly suggest type 1 diabetes mellitus. In type 1 diabetes mellitus, there is a deficiency of insulin leading to high blood sugar levels (hyperglycemia) and the breakdown of fats producing ketones, causing ketonuria. Type 2 diabetes mellitus typically presents differently and is more common in older individuals. Diabetes insipidus is characterized by excessive thirst and urination due to a deficiency of antidiuretic hormone, distinct from the provided clinical scenario. Hyperthyroidism may present with some overlapping symptoms like fatigue, but it does not account for the specific laboratory findings of hyperglycemia and ketonuria seen in this case.

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