Insulin forces which electrolyte out of the plasma and into the cells?

Calcium

Potassium

Magnesium

Sodium

Answer and Explanation

The Correct Answer is B

Choice A reason: Calcium levels in plasma are primarily regulated by parathyroid hormone and vitamin D, not insulin. Insulin has minimal direct effect on calcium transport into cells. Calcium is critical for bone health and muscle function, but its movement is not significantly influenced by insulin’s action on cellular membranes.

Choice B reason: Insulin promotes potassium uptake into cells by activating the sodium-potassium ATPase pump, particularly in muscle and liver cells. This shifts potassium from plasma to intracellular spaces, lowering serum levels. This mechanism is critical in managing hyperkalemia, as insulin facilitates potassium movement alongside glucose, stabilizing membrane potentials.

Choice C reason: Magnesium is regulated by renal and gastrointestinal mechanisms, not directly by insulin. While insulin may indirectly influence magnesium via metabolic effects, it does not actively drive magnesium into cells like potassium. Magnesium is essential for enzymatic reactions, but its plasma levels are not significantly altered by insulin.

Choice D reason: Sodium is primarily regulated by aldosterone and the renin-angiotensin system, not insulin. Insulin does not directly force sodium into cells but may influence sodium-potassium ATPase indirectly. Sodium’s extracellular role in fluid balance is distinct from insulin’s intracellular potassium transport, making it an incorrect choice.

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

Choice A reason: Gout results from hyperuricemia, leading to urate crystal deposition in joints. A 45-year-old male with obesity (BMI 40) has increased purine turnover, elevating uric acid. Hydrochlorothiazide reduces urate excretion, and aspirin impairs renal uric acid clearance, significantly increasing gout risk, making this patient the most susceptible due to multiple risk factors.

Choice B reason: Bulimia may cause electrolyte imbalances, but it is not strongly linked to hyperuricemia or gout. A BMI of 24 is normal, reducing obesity-related purine production. This 39-year-old female has fewer gout risk factors compared to an obese male on medications that elevate uric acid, making her less likely to develop gout.

Choice C reason: Ulcerative colitis may cause systemic inflammation, but it is not a direct risk factor for gout. Hyperuricemia is not typically associated with inflammatory bowel diseases unless complicated by other factors like diuretic use. This 27-year-old female has a lower gout risk compared to the obese male with predisposing medications.

Choice D reason: Limiting purine-rich foods like smoked meat and cheeses reduces uric acid production, lowering gout risk. This 56-year-old male’s dietary habits mitigate hyperuricemia, making him the least likely to develop gout compared to the obese patient on medications that impair uric acid metabolism and excretion.

A. High levels of myoglobin obstructed the tubules and caused intra-renal damage B. Large amounts of IV fluids overloaded the kidneys and caused pre-renal damage C. Pain medications for the injuries were nephrotoxic and caused pre-renal damage D. Significant blood loss impaired renal perfusion and caused post-renal damage

Correct Answer is A

Explanation

Choice A reason: Crush injuries release myoglobin from damaged muscles, causing rhabdomyolysis. Myoglobin precipitates in renal tubules, obstructing them and leading to acute tubular necrosis, an intra-renal acute kidney injury. This toxic effect, combined with oxidative stress, impairs filtration, making this statement accurate for the pathophysiology of renal injury.

Choice B reason: Large IV fluid volumes are used to prevent renal injury in rhabdomyolysis by diluting myoglobin and maintaining perfusion. Fluid overload may cause pulmonary edema but does not typically cause pre-renal damage, which results from hypoperfusion. This statement is inaccurate, as fluids are protective, not harmful.

Choice C reason: Pain medications like NSAIDs can be nephrotoxic, causing intra-renal damage by reducing renal blood flow or causing interstitial nephritis. However, pre-renal damage results from hypoperfusion, not direct toxicity. In crush injuries, myoglobin is the primary cause, making this statement less accurate than myoglobin-related tubular damage.

Choice D reason: Significant blood loss causes pre-renal injury by reducing renal perfusion, not post-renal damage, which involves urinary obstruction. Crush injuries primarily cause intra-renal damage via myoglobin. This statement is inaccurate, as it misattributes the mechanism and type of renal injury in this context.

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

Insulin forces which electrolyte out of the plasma and into the cells?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which patient below is at greatest risk for developing gout?

Correct Answer is A

Explanation

A nurse is caring for a client who sustained significant crush injuries and is being treated for acute renal injury. What is the pathophysiology behind the development of this renal injury?

Correct Answer is A

Explanation

The client has been ordered allopurinol (Zyloprim) and is preparing for discharge. What should the nurse include in the discharge instructions?

A client admitted for injuries from a motor vehicle crash has a history of bipolar disorder for which he takes lithium. What is a major concern of the nurse?

A client who has been diagnosed with bladder cancer is scheduled for an ileal conduit. Which statement by the nurse to the client accurately describes the ileal conduit?

Which client is at greatest risk for osteoporosis?

A client with type 1 diabetes is receiving insulin therapy. The nurse observes the patient experiencing symptoms such as sweating, trembling, and confusion. What is the nurse’s first action?

Prednisone is an oral corticosteroid that has less mineralocorticoid activity than other oral steroids. What does the nurse expect when giving this medication?

A client who was placed on a medication for depression 7 days ago is concerned that he is not experiencing any change in his symptoms. What is the best response by the nurse?

Which type of bone fracture is likely to take the longest to heal?