D446 Adult Health II - Set 3 - Part 2

Correct Answer: Pressure compromising perfusion

Increased compartment pressure compresses blood vessels causing tissue ischemia, producing severe pain exceeding what the visible injury would suggest clinically.
Option a is incorrect because while nerves are eventually damaged, initial severe pain results from tissue ischemia, not primary nerve injury.
Option c is incorrect because infection develops over time with different signs; compartment syndrome's immediate severe pain indicates pressure-induced ischemia.
Option d is incorrect because compartment syndrome pain doesn't respond to analgesics due to ongoing ischemia, not medication timing issues.

Correct Answer: Iron stores depleted

Iron deficiency from chronic blood loss during dialysis and decreased erythropoietin commonly causes restless leg syndrome in dialysis patients requiring supplementation.
Option a is incorrect because calcium imbalances cause muscle cramps and tetany, not the specific crawling sensations of restless leg syndrome.
Option c is incorrect because while magnesium affects muscles, iron deficiency is the primary cause of restless legs in dialysis patients.
Option d is incorrect because high phosphorus causes itching and bone disease, not the specific neurological sensations of restless leg syndrome.

Correct Answer: Insulin shifts potassium

Insulin treatment drives potassium into cells along with glucose, rapidly lowering serum levels despite total body depletion, requiring careful supplementation.
Option a is incorrect because while kidneys excrete potassium, the acute drop during treatment results from insulin-mediated intracellular shift primarily.
Option c is incorrect because acidosis actually shifts potassium out of cells initially; insulin treatment causes the dangerous drop requiring supplementation.
Option d is incorrect because fluid dilution is minimal compared to insulin's dramatic effect shifting potassium intracellularly during DKA treatment.

Correct Answer: Periumbilical veins dilated

Portal hypertension causes blood to bypass the liver through dilated periumbilical collateral veins, creating the visible radiating pattern around the umbilicus.
Option a is incorrect because renal vessels aren't involved in portal circulation; the finding represents abdominal wall collateral vessel dilation.
Option c is incorrect because cardiac veins aren't affected by portal hypertension; the visible veins are periumbilical collaterals bypassing the liver.
Option d is incorrect because pulmonary vessels aren't part of portal circulation; caput medusae specifically indicates periumbilical collateral development.

Correct Answer: Increases acetylcholine availability

Tensilon inhibits acetylcholinesterase, preventing acetylcholine breakdown at neuromuscular junctions, temporarily improving muscle strength within seconds, confirming myasthenia gravis diagnosis.
Option a is incorrect because Tensilon doesn't affect antibody production; it works by preserving acetylcholine at the neuromuscular junction temporarily.
Option c is incorrect because Tensilon doesn't reduce inflammation; it temporarily increases neurotransmitter availability at affected muscle junctions diagnostically.
Option d is incorrect because nerve conduction is normal in myasthenia; the problem is neuromuscular junction transmission improved by acetylcholine preservation.

Correct Answer: Hypotension developing suddenly

Rapid removal of large ascites volumes causes fluid shifts from intravascular space to replace peritoneal fluid, causing dangerous hypotension requiring albumin replacement.
Option a is incorrect because while infection is possible, it develops over time; immediate concern is hemodynamic instability from fluid shifts.
Option c is incorrect because bleeding is uncommon with proper technique; hypotension from fluid redistribution is the immediate risk post-procedure.
Option d is incorrect because paracentesis typically improves breathing by reducing diaphragmatic pressure; hypotension is the immediate concern requiring monitoring.

Correct Answer: Hyperpyrexia with delirium

Extreme hyperthermia with altered mental status distinguishes thyroid storm from uncomplicated hyperthyroidism, indicating life-threatening emergency requiring immediate treatment intervention.
Option a is incorrect because weight loss occurs in chronic hyperthyroidism; thyroid storm presents with acute severe hyperthermia and neurological changes.
Option c is incorrect because tremor and anxiety occur in simple hyperthyroidism; thyroid storm causes extreme vital sign abnormalities and delirium.
Option d is incorrect because exophthalmos relates to Graves' orbital disease; thyroid storm is identified by hyperpyrexia and mental status changes.

Correct Answer: Transmission risk minimal

Undetectable viral loads mean HIV levels are too low to measure or transmit sexually, though the virus remains requiring continued treatment.
Option a is incorrect because undetectable doesn't mean cured; HIV remains in reservoir sites requiring lifelong therapy to maintain suppression.
Option c is incorrect because the immune system remains compromised despite viral suppression; undetectable refers to transmission risk, not immunity restoration.
Option d is incorrect because stopping medications would cause viral rebound; undetectable status requires continuous antiretroviral therapy to maintain suppression.

Correct Answer: Autoimmune process targeted

Immunosuppressants address the underlying autoimmune kidney inflammation preventing irreversible damage, while symptomatic treatment alone allows progressive nephron destruction to continue.
Option a is incorrect because lupus nephritis doesn't typically cause pain; immunosuppressants target the damaging immune process, not symptom relief.
Option b is incorrect because immunosuppressants actually increase infection risk; they're used to prevent kidney damage, not prevent infections.
Option d is incorrect because while blood pressure needs control, immunosuppressants specifically target the autoimmune inflammation causing progressive kidney damage.

Correct Answer: Eliminates inflammatory cause

H. pylori bacteria directly damage gastric mucosa through inflammation and toxin production; eradication removes this causative factor allowing natural healing.
Option a is incorrect because H. pylori doesn't directly control acid production; it damages protective mucosa making tissue vulnerable to acid.
Option c is incorrect because blood flow improvement isn't the mechanism; removing the bacteria eliminates ongoing mucosal damage and inflammation.
Option d is incorrect because H. pylori is an infectious cause unrelated to stress; eradication treats the bacterial cause, not stress factors.

Correct Answer: Excretion primarily renal

Kidneys are the primary route for potassium excretion; acute failure rapidly causes dangerous accumulation since no alternate elimination pathway exists effectively.
Option a is incorrect because dietary intake alone rarely causes hyperkalemia; the problem is failed renal excretion, not excessive intake typically.
Option b is incorrect because while cellular release occurs, the primary issue is inability to excrete normal potassium loads renally.
Option d is incorrect because though some medications affect potassium, the fundamental problem in AKI is lost renal excretion capacity.

Correct Answer: Advanced disease stage

Regular accessory muscle use indicates severe airway obstruction requiring additional respiratory effort for adequate ventilation, signifying advanced COPD with limited reserve.
Option a is incorrect because while infections increase accessory muscle use, baseline use during normal breathing indicates advanced chronic disease.
Option c is incorrect because accessory muscle use reflects disease severity from structural lung changes, not medication adherence issues primarily.
Option d is incorrect because while anxiety worsens breathing, chronic accessory muscle use indicates advanced obstructive disease, not psychological factors.

Correct Answer: Horizontal position improving perfusion

Lying flat redistributes fluid from dependent areas, improving cardiac output and kidney perfusion, mobilizing accumulated fluid for excretion during night.
Option a is incorrect because nocturia in heart failure results from positional hemodynamic changes, not diuretic timing or medication effects.
Option c is incorrect because ADH changes don't explain the specific pattern of nighttime diuresis in heart failure patients.
Option d is incorrect because bladder pressure from other causes wouldn't explain the specific fluid mobilization pattern in heart failure.

Correct Answer: Prevent hemorrhage risk

Variceal banding places elastic bands around dilated veins, causing thrombosis and obliteration, preventing potentially fatal hemorrhage from portal hypertension complications.
Option a is incorrect because banding targets bleeding prevention, not swallowing improvement; varices may affect swallowing but banding prevents bleeding.
Option c is incorrect because banding doesn't reduce portal pressure systemically; it locally obliterates high-risk vessels preventing rupture and bleeding.
Option d is incorrect because varices aren't infectious; they're dilated veins from portal hypertension requiring obliteration to prevent hemorrhage.

Correct Answer: Reduces DVT risk

Immobility after stroke significantly increases deep vein thrombosis risk; early mobilization promotes venous return preventing potentially fatal pulmonary embolism complications.
Option a is incorrect because while preventing atrophy is beneficial, the primary rationale for early mobilization is preventing life-threatening thromboembolism.
Option c is incorrect because mood improvement is secondary; the critical reason for early mobilization is preventing dangerous vascular complications.
Option d is incorrect because discharge timing depends on multiple factors; early mobilization primarily prevents serious complications, not just expediting discharge.

Correct Answer: Colonoscopy procedure performed

Colonoscopy in toxic megacolon risks perforation of the severely inflamed, dilated colon, causing peritonitis; imaging and conservative management are safer initially.
Option a is incorrect because nasogastric decompression helps reduce distention and is appropriate; colonoscopy is the dangerous intervention risking perforation.
Option c is incorrect because IV antibiotics are essential for treating bacterial translocation; they don't increase perforation risk like colonoscopy.
Option d is incorrect because fluid resuscitation is necessary for shock management; colonoscopy is the contraindicated procedure risking perforation.

Correct Answer: ACTH elevation compensatory

Pituitary increases ACTH trying to stimulate failed adrenals; ACTH shares molecular structure with melanocyte-stimulating hormone, causing skin darkening characteristically.
Option a is incorrect because cortisol deficiency causes other symptoms; hyperpigmentation results from elevated ACTH's melanocyte-stimulating effects, not cortisol absence.
Option c is incorrect because aldosterone deficiency causes electrolyte problems and hypotension, not the skin pigmentation changes seen in Addison's.
Option d is incorrect because melanin metabolism isn't primarily altered; increased ACTH cross-reacts with melanocyte receptors causing hyperpigmentation in Addison's.

Correct Answer: Minimal trauma causing

Pathological fractures occur with minimal or no trauma due to bone weakened by tumor infiltration, distinguishing them from normal traumatic fractures.
Option a is incorrect because while healing may be impaired, the defining characteristic is fracture occurrence with minimal force, not healing time.
Option c is incorrect because pain levels vary; the distinguishing feature is minimal trauma causing fracture, not pain intensity differences.
Option d is incorrect because while treatment considers underlying disease, the key difference is minimal force causing fracture in diseased bone.

Correct Answer: Cellular adaptation needed

Renal tubular cells require time to upregulate acid secretion and bicarbonate reabsorption mechanisms, making metabolic compensation gradual unlike rapid respiratory responses.
Option a is incorrect because while enzymes are involved, the delay reflects complex cellular adaptations, not simple enzyme production time.
Option c is incorrect because the timeline reflects physiological adaptation requirements, not medication interference with compensation mechanisms typically.
Option d is incorrect because fluid shifts don't explain the specific timeline; renal compensation requires cellular and metabolic adjustments taking days.

Correct Answer: Clot formation risk persists

Atrial stunning after cardioversion means effective contraction doesn't immediately resume, allowing continued thrombus formation risk despite normal rhythm requiring anticoagulation continuation.
Option a is incorrect because anticoagulation isn't for rhythm stability; it prevents thromboembolism during the atrial stunning period post-cardioversion.
Option c is incorrect because anticoagulation continuation isn't for drug interactions; it's for ongoing clot risk during atrial recovery period.
Option d is incorrect because all cardioverted patients need continued anticoagulation regardless of stroke history due to atrial stunning phenomenon.