RN Exam Practice
Physiological AdaptationQuestion 1299 of 2368

Which complication is the nurse most concerned about in a child with a cyanotic heart defect and polycythemia?

  1. Thrombosis that can cause a stroke or pulmonary emboli
  2. Fluid loss from an increased plasma volume
  3. Hypertension from decreased blood viscosity
  4. Faster blood flow and a lower risk of clotting
Show answer

Correct answer: Thrombosis that can cause a stroke or pulmonary emboli

Extra red blood cells make the blood thick and sluggish, so clots form and can travel to the brain or lungs.

Source: Nursing Health Promotion (Open RN, Chippewa Valley Technical College, 2025), Congenital Heart Defects: Cyanotic Defects. Licensed under CC BY 4.0.

Practice the topic "Physiological Adaptation"

Questions last reviewed: 18 October 2026