ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. . You are caring for a patient who has a diagnosis of syndrome of inappropriate antidiuretic hormone secretion (SIADH). Your patients plan of care includes assessment of specific gravity every 4 hours. The results of this test will allow the nurse to as
- A. Nutritional status
 - B. Potassium balance
 - C. Calcium balance
 - D. Fluid volume status
 
Correct answer: D
Rationale:
2. A nurse is caring for a client who has the following arterial blood values: pH 7.12, PaO2 56 mm Hg, PaCO2 65 mm Hg, and HCO3 22 mEq/L. Which clinical situation should the nurse correlate with these values?
- A. . Diabetic ketoacidosis in a person with emphysema
 - B. Bronchial obstruction related to aspiration of a hot dog
 - C. Anxiety-induced hyperventilation in an adolescen
 - D. Diarrhea for 36 hours in an older, frail woman
 
Correct answer: A
Rationale:
3. What is the most abundant positive ion in blood plasma?
- A. Potassium.
 - B. Calcium.
 - C. Sodium.
 - D. Both potassium and sodium are in equal concentrations.
 
Correct answer: C
Rationale: The correct answer is C: Sodium. Sodium (Na+) is the most abundant cation in the extracellular fluid, including blood plasma. It plays a crucial role in maintaining fluid balance, nerve function, and is essential for various physiological processes. Choice A, Potassium, is also an important ion in the body but is predominantly found intracellularly. Choice B, Calcium, is an essential mineral in the body but is not the most abundant positive ion in blood plasma. Choice D is incorrect as sodium is the primary positive ion in blood plasma, with a much higher concentration compared to potassium.
4. A nurse is caring for a client who is receiving an epidural infusion for pain management. Which assessment finding requires immediate intervention from the nurse?
- A. Redness at the catheter insertion site
 - B. Report of headache and stiff neck
 - C. Temperature of 100.1 F (37.8 C)
 - D. Pain rating of 8 on a scale of 0 to 10
 
Correct answer: B
Rationale:
5. Which electrolyte is important in the formation of the thyroid hormones?
- A. Sodium
 - B. Iodine
 - C. Iron
 - D. Chloride
 
Correct answer: B
Rationale: Iodine is the correct answer because it is essential for the synthesis of thyroid hormones. The thyroid gland incorporates iodine into thyroid hormones such as thyroxine (T4) and triiodothyronine (T3). These hormones are crucial for regulating metabolism, growth, and development. Sodium, iron, and chloride are not directly involved in the formation of thyroid hormones, making them incorrect choices.
Similar Questions
Access More Features
ATI RN Basic
                  
$69.99/ 30 days
                
- 5,000 Questions with answers
 - All ATI courses Coverage
 - 30 days access
 
ATI RN Premium
                  
$149.99/ 90 days
                
- 5,000 Questions with answers
 - All ATI courses Coverage
 - 30 days access