A client with diabetes insipidus (DI) has an average urinary output of 500 ml. of dilute urine every hour for the last 4 hours. Which laboratory test is most important for the nurse to monitor?
White blood cell count.
Capillary glucose.
Urine specific gravity.
Serum sodium.
The Correct Answer is D
A) Incorrect- This test is used to assess for infection or inflammation and is not specifically related to monitoring diabetes insipidus.
B) Incorrect- This test is used to monitor blood sugar levels in individuals with diabetes mellitus, not diabetes insipidus.
C) Incorrect- While urine specific gravity can provide information about urine concentration, it is not the most important laboratory test to monitor in a client with diabetes insipidus. Serum sodium level is a more critical indicator of electrolyte balance and potential complications in DI.
D) Correct- Diabetes insipidus (DI) is a condition characterized by excessive thirst and urination due to the body's inability to regulate fluid balance. In DI, the body either lacks antidiuretic hormone (ADH), which regulates water reabsorption in the kidneys, or the kidneys are resistant to its effects. As a result, clients with DI can produce large volumes of dilute urine. The most significant concern in DI is the potential for electrolyte imbalances, particularly low serum sodium levels (hyponatremia). Excessive loss of water in the urine can lead to dehydration and concentration of the blood's sodium levels. This can result in neurological symptoms, such as confusion, seizures, and even coma. Monitoring the serum sodium level is crucial to ensure that it remains within a safe range.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Allen's test is a procedure used to assess the patency of the ulnar artery and the collateral circulation of the hand. It is performed to determine the adequacy of collateral circulation before obtaining arterial blood gases from the radial artery. The test helps ensure that the ulnar artery is functioning properly and can supply blood to the hand if the radial artery is used for blood sampling or other invasive procedures.
The test involves occluding both the ulnar and radial arteries while the patient clenches their fist. The nurse then releases pressure on the ulnar artery while maintaining occlusion of the radial artery. The hand should quickly regain normal coloration, indicating adequate collateral circulation.
It's important to note that the Allen's test is specific to the assessment of collateral circulation in the hand and is not used for other purposes such as assessing deep vein thrombosis, cardiac output calculation, or obtaining pulmonary artery pressures.
Correct Answer is C
Explanation
Emphysema is a chronic obstructive pulmonary disease (COPD) characterized by the destruction of lung tissue and loss of elasticity in the alveoli. This leads to poor gas exchange, specifically the reduced ability of oxygen to enter the bloodstream and carbon dioxide to be eliminated from the body. Impaired gas exchange can result in hypoxemia and hypercapnia, leading to symptoms such as shortness of breath, fatigue, and decreased exercise tolerance.
While self-care deficit, activity intolerance, and ineffective airway clearance are all potential complications associated with emphysema, impaired gas exchange is the priority due to its direct impact on the client's oxygenation and overall respiratory function.
Addressing impaired gas exchange and optimizing oxygenation is essential to support the client's respiratory health and prevent further complications. Management strategies for impaired gas exchange may include administering supplemental oxygen, implementing respiratory treatments to improve lung function, and providing education on breathing techniques and energy conservation.
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