Which of the following best describes the role of osmoreceptors in the regulation of water balance in the body?

Osmoreceptors in the pituitary gland regulate the secretion of cortisol in response to changes in plasma osmolality.

Osmoreceptors in the hypothalamus detect high plasma osmolality and stimulate the release of antidiuretic hormone (ADH), which enhances water reabsorption in the kidneys.

Osmoreceptors in the kidneys monitor blood pressure changes and regulate aldosterone secretion to control sodium reabsorption and water balance.

Osmoreceptors in the hypothalamus detect low plasma osmolality and inhibit the release of antidiuretic hormone (ADH), leading to increased urine production.

Answer and Explanation

The Correct Answer is B

A. Osmoreceptors in the pituitary gland regulate the secretion of cortisol in response to changes in plasma osmolality: This is incorrect as the pituitary gland itself does not have osmoreceptors; rather, the hypothalamus contains osmoreceptors.

B. Osmoreceptors in the hypothalamus detect high plasma osmolality and stimulate the release of antidiuretic hormone (ADH), which enhances water reabsorption in the kidneys: This is correct. Osmoreceptors in the hypothalamus sense changes in plasma osmolality and regulate ADH release to maintain water balance.

C. Osmoreceptors in the kidneys monitor blood pressure changes and regulate aldosterone secretion to control sodium reabsorption and water balance: This is not correct because the kidneys primarily use juxtaglomerular cells to sense blood pressure changes and regulate aldosterone, not osmoreceptors.

D. Osmoreceptors in the hypothalamus detect low plasma osmolality and inhibit the release of antidiuretic hormone (ADH), leading to increased urine production: This is partially correct; osmoreceptors do detect low osmolality, but their inhibition of ADH would decrease urine production, not increase it.

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is A

Explanation

A. Diarrhea: Diarrhea leads to the loss of bicarbonate, an important buffer in the blood, which can contribute to the development of metabolic acidosis as the body loses bicarbonate faster than it can replace it.

B. Vomiting: Vomiting typically leads to metabolic alkalosis due to the loss of stomach acid, which reduces the amount of hydrogen ions in the body.

C. Salicylate intoxication: This condition primarily causes a mixed acid-base disturbance, including metabolic acidosis and respiratory alkalosis, due to its effects on both the metabolic and respiratory systems.

D. Hyperventilation: This condition causes respiratory alkalosis due to excessive loss of carbon dioxide, not metabolic acidosis.

A. Repeat blood serum potassium B. Educate client regarding high-potassium food sources C. Cardiac monitoring during infusion D. Ensure that the client's urine output is at least 1 mL/kg/hour E. Ensure potassium infusion is prepared with 5% dextrose solution

Correct Answer is ["C","D"]

Explanation

A. Repeat blood serum potassium: While it’s important to monitor potassium levels, the immediate priority when preparing to administer potassium is ensuring safe administration practices, not rechecking levels before initiating therapy.

B. Educate client regarding high-potassium food sources: Client education is important for long-term management but is not a priority when preparing for intravenous potassium replacement in an acute setting.

C. Cardiac monitoring during infusion: Potassium affects cardiac conduction, and rapid correction can lead to arrhythmias. Continuous cardiac monitoring is necessary to detect any life-threatening arrhythmias during the infusion.

D. Ensure that the client's urine output is at least 1 mL/kg/hour: Adequate urine output ensures that the kidneys are functioning and capable of excreting excess potassium, reducing the risk of hyperkalemia.

E. Ensure potassium infusion is prepared with 5% dextrose solution: Potassium should not be mixed with dextrose, as it can increase insulin release, causing potassium to shift into cells and worsen hypokalemia.

View Question and Answer

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Which of the following best describes the role of osmoreceptors in the regulation of water balance in the body?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is reviewing the medical record of a client who has metabolic acidosis. The nurse should realize that which of the following findings contributes to the development of metabolic acidosis?

Correct Answer is A

Explanation

A nurse is assisting with preparations for administering intravenous potassium replacement supplements to a client who has a potassium level of 2.5 mEq/L. Which of the following actions should the nurse plan to include? (Select all that apply.)

Correct Answer is ["C","D"]

Explanation

A nurse is caring for a client who has hypernatremia and is receiving intravenous (IV) hypotonic fluid replacement. Which of the following manifestations should the nurse understand is an indication of an adverse effect from the administration of hypotonic fluids?

A nurse is reinforcing teaching to a graduating nurse about fluid volume deficit. Which of the following concepts about water balance should the nurse explain to the graduating nurse?

A nurse is assisting with the plan of care for a client who has pneumonia and requires chest percussion, vibration, and postural drainage. Which of the following actions should the nurse plan to complete first?

The nurse is reinforcing discharge instructions to the client with pulmonary sarcoidosis. The nurse knows that the client understands the information if the client verbalizes which early sign of exacerbation?

A nurse is caring for a client who has a respiratory illness that has resulted in chronic hypoxia. Which of these conditions can develop as a result of long-term hypoxia?

A nurse is reinforcing discharge education to a client who has hypokalemia. Which of the following suggestions should be included in the teaching plan?

A nurse is caring for a client who is postoperative following a tracheostomy and has copious and tenacious secretions. Which of the following is an acceptable method for the nurse to use to thin this client's secretions?