Nursing Elites

1. Which of the following are normal arterial blood gas values?

• A. PH 7.25, PaCO2 52 mm Hg, PaO2 75 mm Hg, HCO3 18 mEq/L
• B. PH 7.50, PaCO2 30 mm Hg, PaO2 80 mm Hg, HCO3 28 mEq/L
• C. PH 7.40, PaCO2 40 mm Hg, PaO2 90 mm Hg, HCO3 24 mEq/L
• D. PH 7.15, PaCO2 30 mm Hg, PaO2 50 mm Hg, HCO3 24 mEq/L

Correct answer: C

Rationale: The correct answer is C: PH 7.40, PaCO2 40 mm Hg, PaO2 90 mm Hg, HCO3 24 mEq/L. These values represent a balanced state for arterial blood gas. Choice A has lower than normal PH and HCO3 levels and higher PaCO2 and lower PaO2 levels. Choice B has higher than normal PH and HCO3 levels, lower PaCO2, and a normal PaO2 level. Choice D has a significantly lower PH and PaO2 level, normal HCO3 level, and low PaCO2 level, indicating an acidic state with impaired oxygenation.

2. What important instruction should the nurse provide about taking medroxyprogesterone acetate (Provera) for a patient with endometriosis?

• A. Take the medication at the same time each day to maintain consistent hormone levels.
• B. Medroxyprogesterone should be taken with food to reduce gastrointestinal upset.
• C. Discontinue medroxyprogesterone if side effects occur.
• D. Medroxyprogesterone should be taken once a week to maintain effectiveness.

Correct answer: A

Rationale: The correct answer is to take the medication at the same time each day to maintain consistent hormone levels and effectiveness. This consistency is crucial for achieving therapeutic outcomes. Choice B is incorrect because medroxyprogesterone should be taken at the same time each day, regardless of food intake. Choice C is incorrect because side effects should be reported to the healthcare provider for further evaluation rather than discontinuing the medication abruptly. Choice D is incorrect as medroxyprogesterone is usually taken daily for the prescribed duration.

3. What should the nurse assess in a patient experiencing breakthrough bleeding while taking oral contraceptives?

• A. Adherence to the medication schedule
• B. The possibility of pregnancy
• C. The need for an increased dosage
• D. The effectiveness of the current oral contraceptive

Correct answer: A

Rationale: When a patient on oral contraceptives experiences breakthrough bleeding, the nurse should assess the patient's adherence to the medication schedule. Breakthrough bleeding is often a sign of non-adherence, potentially reducing the effectiveness of the contraceptives. Assessing the adherence to the schedule helps in determining if the medication is being taken correctly. The possibility of pregnancy (choice B) is less likely if the patient has been taking the contraceptives as prescribed. Increasing the dosage (choice C) without assessing adherence first can lead to unnecessary medication adjustments. Evaluating the effectiveness of the current oral contraceptive (choice D) comes after assessing adherence to the schedule.

4. What is a common cause of a pulmonary embolism?

• A. An autoimmune disorder
• B. A venous blood clot from the lower extremity
• C. An increase in intracranial pressure
• D. Hypotension

Correct answer: B

Rationale: A pulmonary embolism is commonly caused by a blood clot that originates in the venous system of the lower extremity and travels to the lungs, blocking blood flow. This clot is known as a venous thromboembolism. An autoimmune disorder (Choice A) is not typically associated with pulmonary embolism. Intracranial pressure (Choice C) refers to pressure inside the skull and is unrelated to pulmonary embolism. Hypotension (Choice D) is low blood pressure and is not a common cause of pulmonary embolism.

5. Which of the following imbalances is found in clients with syndrome of inappropriate antidiuretic hormone (SIADH)?

• A. Decreased insulin production
• B. Decreased antidiuretic hormone (ADH) production
• C. Increased secretion of antidiuretic hormone (ADH)
• D. Increased production of insulin

Correct answer: C

Rationale: The correct answer is C: Increased secretion of antidiuretic hormone (ADH). Syndrome of inappropriate antidiuretic hormone (SIADH) is characterized by the excessive release of ADH, which leads to water retention and dilution of blood sodium levels. Choices A, B, and D are incorrect because SIADH is not associated with decreased insulin production, decreased ADH production, or increased production of insulin.

Similar Questions