D446 Adult Health II - Set 1 - Part 2

Correct Answer: Facial grimacing present

Facial grimacing, frowning, or tension in facial muscles are reliable nonverbal pain indicators in unconscious patients who cannot verbally report discomfort.
Option a is incorrect because pain typically increases respiratory rate due to sympathetic stimulation, not decreases it in unconscious patients.
Option c is incorrect because pain usually elevates blood pressure through stress response activation, though this varies with pain severity.
Option d is incorrect because pain generally increases heart rate via sympathetic nervous system activation rather than causing bradycardia.

Correct Answer: White blue red

Raynaud's follows the sequence of white from vasospasm blocking blood flow, blue from deoxygenation, then red from reactive hyperemia upon rewarming.
Option a is incorrect because this reverse sequence doesn't match the pathophysiology of initial vasospasm followed by cyanosis then reperfusion.
Option c is incorrect because blue cyanosis doesn't occur first; initial vasospasm causes white blanching before tissues become deoxygenated.
Option d is incorrect because red hyperemia is the final stage after rewarming, not an intermediate stage before cyanosis develops.

Correct Answer: Pain unrelieved by medication

Severe pain disproportionate to injury and unresponsive to analgesics is the earliest and most reliable sign of compartment syndrome requiring emergency fasciotomy.
Option a is incorrect because mild itching is common under casts from healing and dry skin, not indicative of compartment syndrome.
Option c is incorrect because minimal swelling is expected after fracture and casting; compartment syndrome causes severe, tense swelling.
Option d is incorrect because skin warmth alone suggests normal circulation; compartment syndrome causes cool, pale skin from compromised perfusion.

Correct Answer: Blocks hormone production

Methimazole inhibits thyroid peroxidase enzyme, preventing synthesis of new thyroid hormones to gradually reduce circulating hormone levels treating hyperthyroidism symptoms.
Option a is incorrect because methimazole doesn't destroy thyroid tissue; radioactive iodine therapy causes thyroid tissue destruction for permanent treatment.
Option c is incorrect because methimazole actually decreases iodine organification in the thyroid, not increases uptake of iodine.
Option d is incorrect because methimazole doesn't affect clearance of existing hormones, only prevents new hormone synthesis from occurring.

Correct Answer: Hypertension, high triglycerides, low HDL

Three or more criteria including elevated blood pressure, high triglycerides, and low HDL cholesterol confirm metabolic syndrome diagnosis requiring comprehensive management.
Option a is incorrect because normal weight and high HDL are protective factors against metabolic syndrome, not diagnostic criteria.
Option c is incorrect because low glucose and normal waist circumference indicate absence of key metabolic syndrome components.
Option d is incorrect because metabolic syndrome requires at least three criteria present simultaneously, not a single risk factor.

Correct Answer: Desmopressin hormone replacement

Desmopressin replaces deficient antidiuretic hormone in diabetes insipidus, allowing kidneys to concentrate urine and reduce excessive water loss effectively.
Option a is incorrect because furosemide would worsen polyuria in diabetes insipidus by further increasing urine output through diuretic action.
Option c is incorrect because insulin treats diabetes mellitus affecting blood sugar, not diabetes insipidus which involves water regulation.
Option d is incorrect because spironolactone is a diuretic that would increase urine output, worsening the polyuria of diabetes insipidus.

Correct Answer: Reduces oxygen demand

Morphine decreases myocardial oxygen demand by reducing preload through venodilation and decreasing anxiety, protecting viable heart muscle during infarction.
Option a is incorrect because morphine has no anticoagulant properties; aspirin and heparin prevent clot formation during myocardial infarction.
Option c is incorrect because morphine typically decreases heart rate through vagal stimulation, reducing rather than increasing cardiac workload.
Option d is incorrect because morphine causes vasodilation leading to decreased blood pressure, not elevation which would increase cardiac work.

Correct Answer: Lupus nephritis developing

Proteinuria and hematuria indicate kidney inflammation from immune complex deposition in glomeruli, signaling lupus nephritis requiring aggressive immunosuppressive treatment.
Option a is incorrect because cardiac involvement in lupus presents with pericarditis, myocarditis, or valve problems, not urinary changes.
Option c is incorrect because pulmonary fibrosis causes respiratory symptoms like dyspnea and cough, not kidney-related urinary abnormalities.
Option d is incorrect because neurological lupus manifestations include seizures, psychosis, or cognitive changes, not urinary system symptoms.

Correct Answer: Greater lifestyle flexibility

CAPD allows patients to perform manual exchanges at home or work without machines, providing independence and flexibility compared to scheduled hemodialysis sessions.
Option a is incorrect because hemodialysis removes toxins more rapidly in shorter sessions, while CAPD provides slower, continuous filtration.
Option b is incorrect because CAPD carries significant peritonitis risk from catheter contamination, similar to hemodialysis access infection risks.
Option d is incorrect because CAPD patients often have stricter dietary restrictions due to continuous protein loss in dialysate drainage.

Correct Answer: Bind dietary phosphate

Aluminum hydroxide binds dietary phosphate in the intestines, preventing absorption and helping control hyperphosphatemia common in kidney disease patients.
Option a is incorrect because while aluminum hydroxide is an antacid, its use in CKD specifically targets phosphate control, not acid reduction.
Option c is incorrect because aluminum hydroxide commonly causes constipation as a side effect rather than preventing it.
Option d is incorrect because aluminum hydroxide doesn't provide calcium supplementation; calcium-based binders serve dual purposes of binding phosphate and supplementing calcium.

Correct Answer: Droplet precautions required

Bacterial meningitis spreads through respiratory droplets from coughing or sneezing, requiring droplet precautions including masks within three feet of patients.
Option a is incorrect because contact precautions alone don't prevent respiratory droplet transmission, which is the primary route for bacterial meningitis.
Option c is incorrect because airborne precautions are for diseases with smaller particles traveling longer distances, not large droplet transmission.
Option d is incorrect because standard precautions alone are insufficient for preventing respiratory droplet transmission of bacterial meningitis to others.

Correct Answer: Nerve destruction occurred

Full-thickness burns destroy nerve endings in the dermis and deeper tissues, resulting in absence of pain sensation at the burn site itself.
Option a is incorrect because absence of pain in full-thickness burns indicates severity of injury with nerve damage, not healing progression.
Option c is incorrect because the painlessness results from nerve destruction, not medication effectiveness, though surrounding areas may still hurt.
Option d is incorrect because pain absence doesn't indicate infection status; full-thickness burns have high infection risk regardless of sensation.

Correct Answer: High-fiber intake increase

High-fiber diet increases stool bulk and decreases intraluminal pressure in the colon, preventing inflammation of diverticula and progression to diverticulitis.
Option a is incorrect because low-fiber diets increase constipation and colonic pressure, potentially worsening diverticular disease and causing complications.
Option c is incorrect because liquid diets are used during acute diverticulitis flares, not for preventing progression of asymptomatic diverticulosis.
Option d is incorrect because protein restriction isn't indicated in diverticular disease; fiber content is the key dietary modification needed.

Correct Answer: Liver function tests

Methotrexate can cause hepatotoxicity requiring regular liver function monitoring to detect early signs of liver damage and adjust dosing accordingly.
Option a is incorrect because methotrexate doesn't affect thyroid function; regular thyroid monitoring isn't required during rheumatoid arthritis treatment.
Option c is incorrect because cardiac enzymes aren't routinely affected by methotrexate; liver and blood counts are the primary concerns.
Option d is incorrect because hormone levels aren't directly impacted by methotrexate therapy used for rheumatoid arthritis treatment.

Correct Answer: Disequilibrium syndrome occurring

Disequilibrium syndrome results from rapid solute removal causing cerebral edema, presenting with neurological symptoms like headache, nausea, and mental confusion.
Option a is incorrect because arterial steal syndrome causes hand pain and pallor from vascular insufficiency, not neurological symptoms during dialysis.
Option c is incorrect because access infections cause local signs like redness and drainage plus systemic fever, not acute neurological changes.
Option d is incorrect because aluminum toxicity develops gradually over time causing bone pain and dementia, not acute symptoms during dialysis.

Correct Answer: Prevent clot formation

Heparin anticoagulation prevents blood clotting in the dialysis circuit and dialyzer membrane, maintaining patency for effective blood filtration throughout treatment.
Option a is incorrect because heparin is an anticoagulant without antimicrobial properties; it doesn't prevent infections at access sites.
Option b is incorrect because heparin doesn't directly affect blood pressure; hypotension during dialysis results from fluid removal, not anticoagulation.
Option d is incorrect because heparin prevents clotting but doesn't enhance the dialyzer's ability to remove toxins from the blood.

Correct Answer: Beta-adrenergic blockers

Beta-blockers control hyperthyroid symptoms like tachycardia, tremor, and anxiety by blocking effects of excess thyroid hormone on cardiovascular system.
Option a is incorrect because while calcium channel blockers affect heart rate, beta-blockers more effectively control multiple hyperthyroid symptoms simultaneously.
Option c is incorrect because ACE inhibitors treat hypertension and heart failure but don't address the sympathetic symptoms of hyperthyroidism.
Option d is incorrect because diuretics don't control the cardiovascular manifestations of excess thyroid hormone affecting heart rate and rhythm.

Correct Answer: Palpable thrill present

A palpable thrill indicates turbulent blood flow through the patent fistula, confirming adequate blood flow for successful hemodialysis access use.
Option a is incorrect because absence of bruit suggests fistula occlusion or poor flow, indicating non-functioning access requiring immediate evaluation.
Option b is incorrect because while pulsation may be visible, the palpable thrill is the most reliable indicator of adequate fistula function.
Option d is incorrect because cool temperature suggests poor perfusion; a functioning fistula should feel warm from arterial blood flow.

Correct Answer: Caffeinated beverages drunk

Caffeine stimulates gastric acid secretion, potentially worsening peptic ulcer symptoms and delaying healing, making avoidance important for symptom control.
Option a is incorrect because dairy products were once thought helpful for ulcers; while not necessarily beneficial, they're not specifically contraindicated.
Option b is incorrect because bland foods like crackers are generally well-tolerated and don't stimulate excess acid production in most patients.
Option d is incorrect because lean proteins are important for healing and don't typically aggravate peptic ulcers when properly prepared.

Correct Answer: Potassium conservation maintained

Spironolactone is potassium-sparing, important in liver failure where hypokalemia can precipitate hepatic encephalopathy and dangerous arrhythmias requiring careful management.
Option a is incorrect because spironolactone works more slowly than loop diuretics like furosemide, taking days to reach full effect.
Option c is incorrect because medication cost isn't the primary consideration; the physiological benefits determine diuretic choice in liver failure.
Option d is incorrect because spironolactone can cause gynecomastia and hyperkalemia; it's chosen for potassium-sparing properties, not fewer side effects.