1 :

Hint : 🧠 “Diuresis mirrors ICP drop.”

Correct Answers:

  • Urine output is increased


Rationale :

💧Mannitol is an osmotic diuretic that raises plasma osmolality, pulling water from edematous brain tissue into the intravascular space; the most direct, measurable effect is a prompt rise in urine output.

💧A brisk diuresis confirms that mannitol reached the renal tubules intact (it is freely filtered, not reabsorbed), demonstrating therapeutic action.

💧Reduced intracranial pressure (ICP) follows fluid shift plus diuresis; while neurologic symptoms may improve, urine output is the earliest and most reliable bedside indicator of efficacy.

💧Monitoring hourly I&O and serum osmolality (goal ≈ 300–320 mOsm/kg) helps maintain effectiveness and avoid overdiuresis.

💧The nurse should also trend neurologic checks and ICP (if monitored), but increased urine output is the clearest confirmation of mannitol’s effect at the kidney.


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2 :

Hint : 🧠 “H2 can haze minds.”

Correct Answers:

  • H2 Blockers


Rationale :

🧩 In older adults, H2 receptor antagonists (e.g., cimetidine, ranitidine/famotidine class) can cross the blood–brain barrier, causing CNS effects such as confusion, agitation, and delirium.

🧩 Age-related renal clearance decline increases drug exposure and the risk of neurocognitive adverse effects.

🧩 Early recognition of new-onset confusion in an older client on an H2 blocker should prompt dose review and potential discontinuation.

🧩 Cimetidine is particularly associated with CNS effects and drug–drug interactions via CYP inhibition—critical in polypharmacy.

🧩 Nursing care includes renal function assessment, mental status monitoring, and provider notification for regimen adjustment.


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3 :

Hint : 🟠 “Thiazides waste K⁺.”

Correct Answers:

  • "I should avoid eating bananas."


Rationale :

🍌Hydrochlorothiazide promotes renal potassium loss, predisposing to hypokalemia; clients should increase dietary potassium (e.g., bananas, oranges, leafy greens) unless contraindicated.

🍌Morning dosing is appropriate to limit nocturia.

🍌Thiazides can raise blood glucose, so more frequent glucose checks are prudent in clients with or at risk for diabetes.

🍌Dizziness may indicate volume depletion or hypotension; notifying the provider is appropriate to reassess dose and hydration.

🍌Education focuses on orthostatic precautions, electrolyte awareness, and daily weights if used for edema/HTN.


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4 :

Hint : 🧠 “Trap NH₃ in gut.”

Correct Answers:

  • Lactulose


Rationale :

🧪Lactulose acidifies colonic contents, converting ammonia (NH₃) to ammonium (NH₄⁺), which is trapped in the gut and excreted—lowering serum ammonia in hepatic encephalopathy.

🧪It also increases stool water content and transit, reducing intestinal ammonia absorption and total body burden.

🧪Clinical targets include 2–3 soft stools/day, signaling adequate dosing for ammonia reduction.

🧪Nurses monitor mental status, ammonia levels, hydration, and electrolytes to prevent dehydration or hyponatremia.

🧪Education emphasizes consistent dosing, avoiding overt diarrhea, and reporting confusion or excessive stools.


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5 :

Hint : 🧪 “Laxatives ↓ Na⁺.”

Correct Answers:

  • Na-128


Rationale :

🧂Laxative overuse can cause excessive stool water losses and free-water shifts, leading to dilutional hyponatremia (e.g., Na 128 mEq/L).

🧂Risk increases with osmotic agents, older age, low solute intake, and concomitant diuretics.

🧂Clinical vigilance includes monitoring for fatigue, headache, confusion, seizures—hallmarks of hyponatremia.

🧂Nursing care emphasizes judicious use, hydration counseling, and electrolyte monitoring in frequent or chronic laxative users.

🧂Interventions may include holding the laxative, assessing volume status, and coordinating gradual sodium correction if symptomatic.


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6 :

Hint : ⚖️“Blocks aldosterone—↑K⁺, ↓Na⁺.”

Correct Answers:

  • Spironolactone


Rationale :

🛡️Spironolactone is an aldosterone antagonist (K⁺-sparing diuretic) that retains potassium and promotes sodium excretion, creating risks for hyperkalemia and hyponatremia.

🛡️It improves outcomes in heart failure by countering aldosterone-mediated remodeling, but requires close electrolyte surveillance.

🛡️Monitor K⁺ and Na⁺ at baseline and within 3–7 days after dose changes, then periodically.

🛡️Counsel to avoid high-K⁺ diets/supplements and use caution with ACEIs/ARBs/NSAIDs that increase hyperkalemia risk.

🛡️Assess for signs of hyperkalemia (weakness, paresthesias, arrhythmias) and hyponatremia (headache, confusion, cramps).


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7 :

Hint : 🔬“PPI = blocks proton pump.”

Correct Answers:

  • "It reduces gastroesophageal reflux by decreasing stomach acid production."


Rationale :

🔰Esomeprazole is a proton pump inhibitor (PPI) that irreversibly inhibits the H⁺/K⁺-ATPase in parietal cells, markedly reducing gastric acid secretion.

🔰Lower gastric acidity diminishes esophageal acid exposure, improving GERD symptoms and mucosal healing.

🔰Best efficacy occurs with administration 30–60 minutes before the first meal, aligning with active proton pumps.

🔰Long-term use requires monitoring for B12 deficiency, hypomagnesemia, and infection risks (e.g., C. difficile).

🔰Teaching includes avoiding abrupt discontinuation (rebound acid hypersecretion) and using lowest effective dose.


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8 :

Hint : 🩺 “CKD: pick aluminum.”

Correct Answers:

  • Aluminum Carbonate


Rationale :

🧯In renal disease, magnesium-containing antacids can accumulate and cause hypermagnesemia; sodium bicarbonate adds sodium load/alkalosis, and calcium salts can contribute to hypercalcemia.

🧯Aluminum-based antacids (e.g., aluminum carbonate/hydroxide) are safer choices when renal clearance is reduced.

🧯Aluminum products can bind phosphate, sometimes beneficial in hyperphosphatemia of CKD.

🧯Counsel about constipation risk and the need to separate from other meds (can chelate and reduce absorption).

🧯Nurses should monitor bowel patterns, phosphate levels, and overall electrolyte trends in CKD.


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9 :

Hint : 🧒“No salicylates in kids.”

Correct Answers:

  • Bismuth subsalicylate


Rationale :

🚫Bismuth subsalicylate contains a salicylate moiety; in children and adolescents, it is contraindicated due to the risk of Reye syndrome, especially with viral illness.

🚫Pediatric antidiarrheal care prioritizes oral rehydration and age-appropriate agents, avoiding salicylates.

🚫Nurses should verify age and recent viral symptoms (e.g., influenza, varicella) before recommending therapies.

🚫Education highlights reading OTC labels carefully for salicylate-containing ingredients.

🚫Report persistent diarrhea, fever, or dehydration signs for provider evaluation.


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10 :

Hint : ☑️ “Loops lower K⁺—check first.”

Correct Answers:

  • Potassium


Rationale :

⚡Furosemide is a loop diuretic that increases excretion of Na⁺, K⁺, Cl⁻, and water, making hypokalemia a key safety concern before the first dose.

⚡Low potassium heightens risk for ventricular arrhythmias, especially in clients with HF or on digoxin.

⚡Baseline and ongoing K⁺ monitoring guide supplementation and dose adjustments; target ranges often ≥4.0 mEq/L in HF.

⚡Nurses also assess volume status, renal function, and blood pressure, but potassium has the most immediate impact on cardiac safety.

⚡Teaching includes dietary K⁺ sources, recognizing cramps/weakness, and timely lab follow-up.


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Total Questions: 10

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