Nursing Elites

1. 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.

2. A patient with chronic obstructive pulmonary disease (COPD) is experiencing severe dyspnea. What position should the nurse encourage the patient to assume?

• A. Supine
• B. Prone
• C. High Fowler's
• D. Trendelenburg

Correct answer: C

Rationale: The High Fowler's position is the most appropriate position for a patient with COPD experiencing severe dyspnea. This position helps improve lung expansion and reduce dyspnea by allowing the diaphragm to move more freely and increasing the efficiency of breathing. It also helps reduce the work of breathing and enhances oxygenation in patients with COPD. Supine position (Choice A) may worsen dyspnea by limiting lung expansion. Prone position (Choice B) is not ideal for COPD patients experiencing severe dyspnea as it may restrict breathing. Trendelenburg position (Choice D) is not recommended for COPD patients with dyspnea as it can further compromise breathing.

3. In evaluating a 10-year-old child with meningitis suspected of having diabetes insipidus, which finding is indicative of diabetes insipidus?

• A. Decreased urine specific gravity.
• B. Elevated urine glucose.
• C. Decreased serum potassium.
• D. Increased serum sodium.

Correct answer: A

Rationale: Diabetes insipidus is characterized by the kidneys' inability to concentrate urine, leading to decreased urine specific gravity. This results in the excretion of large volumes of dilute urine, causing a decrease in urine specific gravity. Therefore, when evaluating a suspected case of diabetes insipidus, a finding of decreased urine specific gravity is indicative of this condition.

4. A 35-year-old man presents with fatigue, weight loss, and hyperpigmentation of the skin. 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 clinical presentation of a 35-year-old man with fatigue, weight loss, hyperpigmentation of the skin, hyponatremia, hyperkalemia, and low cortisol levels is classic for Addison's disease. These findings are consistent with primary adrenal insufficiency, where the adrenal glands fail to produce adequate cortisol. In Addison's disease, the adrenal cortex is damaged, leading to decreased cortisol production and elevated levels of ACTH. This results in symptoms such as fatigue, weight loss, and hyperpigmentation due to increased ACTH production stimulating melanocytes. Hyponatremia and hyperkalemia are common electrolyte abnormalities seen in Addison's disease due to aldosterone deficiency. Therefore, the correct diagnosis in this case is Addison's disease.

5. What instruction should the nurse include in the discharge teaching for a patient with hypothyroidism prescribed levothyroxine?

• A. Take the medication with meals.
• B. Take the medication in the morning on an empty stomach.
• C. Discontinue the medication if you feel better.
• D. Double the dose if a dose is missed.

Correct answer: B

Rationale: The correct instruction for a patient with hypothyroidism prescribed levothyroxine is to take the medication in the morning on an empty stomach to enhance absorption. Taking it with meals can interfere with absorption. Patients should not discontinue the medication without consulting their healthcare provider as it can lead to adverse effects. Doubling the dose if a dose is missed can increase the risk of side effects and overdosage. It is crucial for patients to follow the prescribed dosing schedule and consult their healthcare provider for any concerns or missed doses.

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