Core Nursing Explanation
Key Concept Analysis: This question tests the priority nursing intervention for a child with
Hemophilia A experiencing an acute
Hemarthrosis (joint bleeding). Hemophilia A is a deficiency of clotting
Factor VIII. The pathophysiology is straightforward: without adequate Factor VIII, the intrinsic coagulation pathway is impaired, leading to prolonged and potentially severe bleeding, even from minor trauma. In this scenario, the swollen, painful knee with limited motion is classic for hemarthrosis. The priority is to
stop the bleeding to prevent complications like chronic joint damage, contractures, and pain.
Answer Rationale:
Key Point! The definitive, life-saving treatment for a bleeding episode in Hemophilia A is the prompt replacement of the missing clotting factor.
Administering factor VIII concentrate is the highest priority intervention because it directly addresses the root cause of the problem—the coagulation defect. It will halt the ongoing bleeding into the joint, which is the source of the pain, swelling, and risk for long-term disability. All other supportive measures are secondary to this critical step.
Distractor Analysis:
Watch out for confusion! Option ①, applying ice, is a correct
supportive measure to reduce pain and swelling through vasoconstriction, but it does not stop the underlying coagulopathy. It is important, but not the priority.
Option ②, encouraging active range of motion, is
contraindicated during an acute bleeding episode. Movement can exacerbate the bleeding and increase damage. Rest and immobilization are key initially.
Option ④, positioning the knee in a dependent position, would increase blood flow to the area due to gravity, potentially worsening the swelling and bleeding. The correct approach is to
elevate and immobilize the joint.
Related Concepts: The nursing process guides us here: Assessment (recognizing signs of hemarthrosis) leads to the nursing diagnosis of
Risk for Injury (bleeding) or
Acute Pain. The planning and implementation are centered on factor replacement (collaborative intervention) and supportive care (independent nursing interventions). Evaluation would monitor for decreased swelling, improved pain, and return of joint function.
Concept Summary
| Concept | Key Takeaway |
|---|
| Hemophilia A Pathophysiology | X-linked recessive disorder causing Factor VIII deficiency, impairing the intrinsic coagulation pathway. |
| Hemarthrosis (Joint Bleeding) | Classic manifestation. Presents with pain, swelling, warmth, and limited ROM (Range of Motion). |
| Priority Intervention | Immediate factor replacement therapy (Factor VIII concentrate). |
| Supportive Nursing Care (R.I.C.E.) | Rest, Ice, Compression (with caution), Elevation. Watch out for confusion! Avoid heat and early exercise. |
| Patient/Family Education | Injury prevention, recognizing early signs of bleeding, importance of prompt treatment, and genetic counseling. |
Side-by-Side Comparison!
| Hemophilia A (Factor VIII Deficiency) | Hemophilia B (Factor IX Deficiency / Christmas Disease) | von Willebrand Disease (vWD) |
|---|
| Deficiency in Factor VIII. | Deficiency in Factor IX. | Deficiency or defect in von Willebrand factor (vWF), which helps platelets adhere and stabilizes Factor VIII. |
| Treatment: Factor VIII concentrate. | Treatment: Factor IX concentrate. | Treatment: Desmopressin (DDAVP) (mild cases) or Factor VIII concentrate containing vWF. |
| Prolonged aPTT, normal PT. | Prolonged aPTT, normal PT. | Prolonged Bleeding time, may have prolonged aPTT. |
Anatomy, Physiology & Pharmacology Points
•
Coagulation Cascade: Factor VIII is part of the
intrinsic pathway. Its deficiency is measured by the
Activated Partial Thromboplastin Time (aPTT).
•
Pharmacology:
Factor VIII concentrate is a blood product. Nursing responsibilities include verifying the order, checking the product, administering it promptly (often IV push or short infusion), and monitoring for adverse reactions like allergic responses or fever.
Memory Tips
•
Acronym for Acute Joint Bleeding Care:
Factor First! Then
R.I.C.E. (Rest, Ice, Compression, Elevation).
•
Hemophilia A vs. B: "A comes before B in the alphabet, and
Eight (VIII) comes before
Nine (IX)." A = Factor VIII, B = Factor IX.
High-Frequency NCLEX Topics
NCLEX loves to test
priority-setting in bleeding disorders. They will present a symptom (like hemarthrosis) and ask for the
first or
most important action. The answer is almost always the intervention that directly treats the underlying cause (factor replacement) or addresses an immediate life threat (like airway in hemorrhage).
Watch Out for Question Variations!
• Variation 1: "The nurse is preparing to administer Factor VIII concentrate. Which action is most important?" (Answer: Verify patient identity and the specific factor product against the order to prevent medication error.)
• Variation 2: Shift from symptom to education: "What is the priority teaching point for the parents upon discharge?" (Answer: How to recognize early signs of bleeding and when to seek immediate treatment.)
• Variation 3: "Which finding indicates a therapeutic response to Factor VIII administration?" (Answer: Reduction in joint swelling and pain, stabilization of vital signs if there was blood loss.)