D027 Advanced Pathopharmacological Foundations - Set 4 - Part 2

Correct Answer: High salt intake

Increased salt intake expands blood volume, helping counteract the blood pooling and orthostatic symptoms in POTS.
Option a is incorrect because low sodium worsens POTS by reducing blood volume, increasing pooling symptoms.
Option c is incorrect because protein restriction doesn't address the volume and pooling issues in POTS.
Option d is incorrect because fat limitation doesn't improve the orthostatic intolerance characterizing POTS syndrome.

Correct Answer: Nasal spray

Live attenuated influenza vaccine given as nasal spray provides needle-free immunization for appropriate age groups.
Option a is incorrect because oral drops aren't available for influenza vaccination; nasal spray is used.
Option c is incorrect because patch vaccines for influenza aren't currently available for routine use.
Option d is incorrect because sublingual tablets don't exist for influenza vaccination delivery methods.

Correct Answer: Early childhood

Prophylactic thyroidectomy in early childhood prevents medullary thyroid cancer development in RET mutation carriers identified through screening.
Option a is incorrect because surgery at birth is unnecessarily early; early childhood timing is appropriate.
Option c is incorrect because waiting until adolescence risks cancer development before prophylactic surgery.
Option d is incorrect because adult surgery is too late; cancer often develops in childhood with mutations.

Correct Answer: Acupuncture treatment

Acupuncture involves inserting fine needles at specific meridian points to modulate pain signals and provide relief.
Option a is incorrect because massage uses manual manipulation of soft tissues, not needle insertion.
Option c is incorrect because chiropractic focuses on spinal adjustments, not needle insertion at meridians.
Option d is incorrect because physical therapy uses exercises and modalities, not acupuncture needle placement.

Correct Answer: Sitting upright

Sitting upright with arms supported allows gravity to collect fluid dependently, optimizing thoracentesis drainage access.
Option a is incorrect because supine position doesn't allow optimal fluid collection for drainage access.
Option c is incorrect because lateral position is less optimal than upright sitting for fluid access.
Option d is incorrect because prone position prevents access to the pleural space for drainage.

Correct Answer: Deep ulcerations

Deep transmural ulcerations alternating with raised normal tissue create the cobblestone appearance characteristic of Crohn's disease.
Option a is incorrect because superficial erosions don't create the deep relief pattern of cobblestone appearance.
Option c is incorrect because polyps create different appearance than the ulcerated cobblestone pattern.
Option d is incorrect because scar tissue alone doesn't create the active ulceration cobblestone pattern.

Correct Answer: During labor

Intrapartum antibiotic prophylaxis during labor prevents group B streptococcus transmission to newborn during delivery.
Option a is incorrect because first trimester treatment doesn't prevent transmission during delivery months later.
Option b is incorrect because third trimester treatment doesn't provide coverage during the actual delivery.
Option d is incorrect because postpartum antibiotics are too late to prevent newborn transmission during birth.

Correct Answer: Cerebellar system

Heel-to-shin test assesses cerebellar coordination; inability indicates cerebellar dysfunction causing the ataxia symptoms observed.
Option a is incorrect because pyramidal tract lesions cause weakness and spasticity, not coordination problems.
Option c is incorrect because sensory ataxia improves with visual guidance, unlike cerebellar coordination deficits.
Option d is incorrect because basal ganglia dysfunction causes movement disorders like Parkinson's, not ataxia.

Correct Answer: Enlarge the aorta

Norwood procedure enlarges the hypoplastic aorta and connects it to right ventricle for systemic circulation.
Option a is incorrect because septal defects are maintained for mixing, not closed in Norwood procedure.
Option c is incorrect because tissue isn't removed; the aorta is reconstructed and enlarged for function.
Option d is incorrect because valve replacement isn't the primary goal of initial Norwood reconstruction.

Correct Answer: Increased anxiety

SSRIs initially increase anxiety before therapeutic effects develop, requiring patient education about temporary symptom worsening.
Option a is incorrect because weight gain, not loss, is more common with long-term SSRI use.
Option c is incorrect because SSRIs don't typically cause hypertension; they may slightly lower blood pressure.
Option d is incorrect because SSRIs don't cause hypoglycemia; this isn't a recognized side effect.

Correct Answer: Above sixty

Sweat chloride levels above sixty millimoles per liter confirm cystic fibrosis diagnosis in symptomatic patients.
Option a is incorrect because thirty is within normal range, not diagnostic of cystic fibrosis.
Option b is incorrect because forty is borderline, requiring repeat testing rather than confirming diagnosis.
Option d is incorrect because while elevated, sixty is the diagnostic threshold, not eighty.

Correct Answer: Glargine insulin

Glargine's unique pH prevents mixing with other insulins, requiring separate injection for basal coverage.
Option a is incorrect because regular insulin can be mixed with NPH using clear-to-cloudy drawing technique.
Option b is incorrect because NPH commonly mixes with regular or rapid-acting insulins for coverage.
Option d is incorrect because lispro can be mixed with NPH when appropriate for patient needs.

Correct Answer: One symptom

PTSD diagnosis requires at least one avoidance symptom along with other criteria from different symptom clusters.
Option b is incorrect because only one avoidance symptom is required, though patients may have more.
Option c is incorrect because three avoidance symptoms exceed the minimum diagnostic requirement of one.
Option d is incorrect because four avoidance symptoms far exceed the single symptom diagnostic requirement.

Correct Answer: Negative pressure room

Negative pressure rooms prevent tuberculosis transmission by containing airborne particles and exhausting them safely outside.
Option a is incorrect because contact isolation doesn't prevent airborne tuberculosis transmission requiring respiratory protection.
Option b is incorrect because droplet precautions are insufficient for airborne tuberculosis particles requiring special ventilation.
Option d is incorrect because standard precautions alone don't prevent airborne tuberculosis transmission in healthcare.

Correct Answer: Factor VIII

Hemophilia A results from factor VIII deficiency, requiring replacement therapy before surgical procedures to prevent bleeding.
Option a is incorrect because factor VII deficiency causes a different bleeding disorder, not hemophilia A.
Option c is incorrect because factor IX deficiency causes hemophilia B, not hemophilia A.
Option d is incorrect because factor X deficiency causes a rare bleeding disorder, not hemophilia A.

Correct Answer: Streptococcus pneumoniae

Streptococcus pneumoniae remains the most common bacterial cause of community-acquired pneumonia requiring empiric antibiotic coverage.
Option a is incorrect because Mycoplasma causes atypical pneumonia, less common than pneumococcal pneumonia.
Option c is incorrect because Chlamydophila causes atypical pneumonia, not the most common bacterial type.
Option d is incorrect because Legionella causes severe but less common pneumonia than Streptococcus pneumoniae.

Correct Answer: Crohn's disease

Crohn's transmural inflammation creates fistulas including perianal fistulas, a characteristic complication distinguishing it from ulcerative colitis.
Option a is incorrect because ulcerative colitis affects only mucosa, not creating the fistulas of Crohn's.
Option c is incorrect because irritable bowel syndrome is functional without the inflammation causing fistulas.
Option d is incorrect because celiac disease affects small intestine absorption, not causing perianal fistulas.

Correct Answer: Two weeks

Major depression requires symptoms lasting at least two weeks, differentiating it from transient grief or adjustment.
Option a is incorrect because one week is insufficient to diagnose major depression versus situational sadness.
Option c is incorrect because one month exceeds the minimum two-week duration for depression diagnosis.
Option d is incorrect because two months far exceeds the two-week minimum diagnostic duration requirement.

Correct Answer: Bisphosphonates

Bisphosphonates prevent bone resorption and calcium release, helping manage hypercalcemia from parathyroid adenoma.
Option a is incorrect because loop diuretics may worsen hypercalcemia by reducing calcium excretion.
Option c is incorrect because beta blockers don't affect calcium metabolism or bone resorption.
Option d is incorrect because ACE inhibitors don't impact parathyroid function or calcium homeostasis.

Correct Answer: Twenty-five percent

Two carrier parents have twenty-five percent chance per pregnancy of having a child with sickle cell disease.
Option a is incorrect because two carriers can produce affected children, not zero percent chance.
Option c is incorrect because fifty percent of children will be carriers, not have the disease.
Option d is incorrect because not all children will have disease; only twenty-five percent are affected.