Which of the following best describes the primary source of energy for Earth's climate system?

Solar radiation

Geothermal heat

Tidal forces

Human activities

Answer and Explanation

The Correct Answer is A

Choice A reason: Solar radiation delivers approximately 99.97% of Earth's climate system energy. The sun emits electromagnetic waves, primarily in visible and infrared spectra, absorbed by Earth's surface and atmosphere. This energy fuels atmospheric circulation, ocean currents, and the hydrological cycle, establishing temperature gradients that drive global weather and climate patterns. Sunspot cycles cause minor variations but affirm solar dominance.

Choice B reason: Geothermal heat, from radioactive decay in Earth's core and mantle plus residual formation heat, contributes only about 0.025% to the climate energy budget. It powers volcanic activity and tectonic processes, with localized effects like geothermal springs, but its role in atmospheric or oceanic circulation is negligible compared to solar radiation’s extensive influence.

Choice C reason: Tidal forces, driven by gravitational interactions between Earth, the moon, and the sun, produce oceanic tides, contributing less than 0.001% to the climate system’s energy. Tides influence coastal mixing but lack the magnitude to drive atmospheric circulation or global climate, making them insignificant compared to solar radiation’s vast energy input.

Choice D reason: Human activities, such as fossil fuel burning and deforestation, release greenhouse gases, altering climate by trapping solar heat. These are secondary effects, not primary energy sources, with negligible direct energy contribution. They modify solar radiation absorption, acting as feedback mechanisms, not independent drivers like the sun’s direct energy.

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Correct Answer is A

Explanation

Choice A reason: Limiting potassium-rich foods is critical in chronic kidney disease, as impaired renal excretion causes hyperkalemia, risking cardiac arrhythmias. Foods like bananas and oranges are restricted to maintain safe potassium levels, making this the priority dietary teaching to prevent life-threatening complications.

Choice B reason: Increasing protein intake is inappropriate, as chronic kidney disease requires protein restriction to reduce uremic toxins and kidney workload. Potassium restriction is prioritized, as hyperkalemia poses an immediate cardiac risk, making it the essential dietary focus over protein adjustments.

Choice C reason: Restricting carbohydrates is not standard in chronic kidney disease unless diabetes is present. Potassium restriction is critical, as elevated potassium levels from impaired renal clearance cause arrhythmias, making it the priority dietary intervention to ensure cardiac safety.

Choice D reason: Encouraging high-sodium foods is incorrect, as sodium restriction prevents fluid retention and hypertension in chronic kidney disease. Potassium restriction is the priority, as hyperkalemia directly threatens cardiac function, making it the essential dietary focus over sodium concerns.

A. Sexual dysfunction B. Hypotension C. Hyperglycemia D. Peripheral edema

Correct Answer is A

Explanation

Choice A reason: Sexual dysfunction is a common SSRI side effect, as increased serotonin inhibits sexual arousal and orgasm. Monitoring is critical, as it affects adherence in depression treatment, requiring dose adjustments or alternative therapies, making it the priority side effect to assess.

Choice B reason: Hypotension is less common with SSRIs, though orthostatic changes may occur. Sexual dysfunction is more frequent, impacting quality of life and treatment adherence in depression, making it the priority to monitor, as it directly affects patient compliance and outcomes.

Choice C reason: Hyperglycemia is not a typical SSRI side effect, though metabolic changes are rare. Sexual dysfunction is a prevalent issue, reducing adherence in depression treatment, making it the priority to monitor, as it significantly impacts patient satisfaction and therapy continuation.

Choice D reason: Peripheral edema is rare with SSRIs, which primarily affect serotonin pathways. Sexual dysfunction is a common side effect, compromising adherence in depression management, making it the priority to monitor, as it directly influences treatment success and patient well-being.

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Which of the following best describes the primary source of energy for Earth's climate system?

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Naxlex Comprehensive Predictor Exams

The nurse is caring for a client with a history of chronic kidney disease. Which dietary restriction should the nurse emphasize?

Correct Answer is A

Explanation

The nurse is caring for a client with a history of depression who is prescribed a selective serotonin reuptake inhibitor (SSRI). Which side effect should the nurse monitor for?

Correct Answer is A

Explanation

A client with psoriasis returns to the clinic reporting the persistence of several silvery, scaly areas on the elbows and palms that frequently burn and sometimes bleed. Which prescription should the nurse teach the client to use for the skin condition?

A client presents to the emergency department with muscle aches, headache, fever, and describes a recent loss of taste and smell. The nurse obtains a nasal swab for COVID-19 testing. Which action is most important for the nurse to take?

A client with open-angle glaucoma asks the nurse how long the prescribed medication must be used. Which response by the nurse is accurate?

A client with a history of atrial fibrillation is prescribed warfarin. Which laboratory value should the nurse monitor to assess the medication’s effectiveness?

The nurse is assessing a client with suspected hepatitis. Which finding is most indicative of this condition?

When performing postural drainage on a client with chronic obstructive pulmonary disease, which approach should the nurse use?

The nurse is caring for a client with a history of chronic obstructive pulmonary disease who is receiving oxygen therapy. Which assessment should the nurse prioritize?