HESI RN
Biology Test
1. What is the liquid found inside the cell?
- A. Plasma membrane
- B. Cilia
- C. Cytoplasm
- D. Cytosol
Correct answer: D
Rationale: The correct answer is D, Cytosol. Cytosol is the liquid component of the cytoplasm where various cellular processes occur. Choices A, B, and C are incorrect because the plasma membrane is the outer boundary of the cell, cilia are hair-like structures on the cell surface, and cytoplasm is the jelly-like substance that contains organelles within the cell, not the liquid inside the cell.
2. A client with a history of asthma is admitted with shortness of breath. Which finding requires immediate intervention?
- A. Increased respiratory rate.
- B. Absence of breath sounds.
- C. Expiratory wheezes.
- D. Productive cough with green sputum.
Correct answer: B
Rationale: The correct answer is B: Absence of breath sounds. This finding can indicate a pneumothorax or severe asthma exacerbation, both of which require immediate intervention to ensure adequate ventilation and prevent further complications. Increased respiratory rate (choice A) is common in asthma exacerbations but may not always necessitate immediate intervention. Expiratory wheezes (choice C) are typical in asthma and may not always indicate a critical condition. A productive cough with green sputum (choice D) suggests a possible respiratory infection but does not warrant immediate intervention as much as the absence of breath sounds.
3. What is the most important instruction for the nurse to provide a client with a new colostomy regarding stoma care?
- A. Cleanse the stoma with hydrogen peroxide and water.
- B. Apply a moisture barrier cream to the peristomal skin.
- C. Measure the stoma using a stoma guide.
- D. Use a dry gauze pad to clean the stoma.
Correct answer: C
Rationale: Measuring the stoma using a stoma guide (C) is crucial as it ensures that the appliance fits properly, which is essential for preventing skin irritation and leakage. Proper measurement helps in selecting the right size of the appliance, promoting comfort and optimal stoma care. In contrast, cleansing with hydrogen peroxide (A), applying a moisture barrier cream (B), and using a dry gauze pad (D) are important but not as critical as ensuring the correct fit of the stoma appliance.
4. The nurse is providing care for a client with syndrome of inappropriate antidiuretic hormone (SIADH). Which assessment finding requires immediate intervention?
- A. Serum sodium of 140 mEq/L.
- B. Serum osmolality of 280 mOsm/kg.
- C. Weight gain of 2 pounds in 24 hours.
- D. Serum sodium of 130 mEq/L.
Correct answer: D
Rationale: The corrected answer is D. A serum sodium level of 130 mEq/L indicates hyponatremia, which requires immediate intervention in a client with SIADH. Hyponatremia can lead to serious complications such as seizures, coma, and cerebral edema. Choices A, B, and C are not the most critical findings in a client with SIADH. While a serum sodium of 140 mEq/L is within the normal range, a decrease to 130 mEq/L is concerning and requires prompt action to prevent complications.
5. A client with hyperthyroidism is receiving radioactive iodine therapy. Which statement by the client indicates a need for further teaching?
- A. I should avoid close contact with pregnant women and children for a few days.
- B. I may experience dry mouth and taste changes for a few days.
- C. I may experience some neck swelling.
- D. I should expect to have no side effects.
Correct answer: D
Rationale: The correct answer is 'D.' The client stating 'I should expect to have no side effects' indicates a need for further teaching as it is incorrect. With radioactive iodine therapy, side effects like dry mouth, taste changes, and neck swelling are common. Choices A and B are correct statements; the client should avoid close contact with pregnant women and children due to radiation exposure, and dry mouth and taste changes are common side effects. Choice C is also correct, making D the correct answer.