Core Nursing Explanation
Key Concept Analysis: This question integrates two critical, high-risk obstetric conditions:
Severe Preeclampsia and
Disseminated Intravascular Coagulation (DIC). The core theme is
prioritizing nursing interventions based on the greatest threat to life. In DIC, the body's clotting system is overactivated, leading to widespread microthrombi that consume clotting factors and platelets, followed by a dangerous bleeding phase. In pregnancy, especially with preeclampsia, the risk of
Key Point! intracranial hemorrhage (ICH) is significantly elevated due to severe hypertension and the coagulopathy of DIC. ICH is a leading cause of maternal mortality in these situations.
Answer Rationale:
Key Point! The priority nursing intervention is
Monitor for signs of intracranial hemorrhage. This is an
assessment and
surveillance action that aligns with the nursing process and patient safety. Early detection of neurological changes (like sudden severe headache, vision changes, altered mental status, seizures, or focal deficits) is critical for immediate intervention to prevent death or permanent disability. The lab values confirm severe DIC: low platelets (
45,000/mm³), low fibrinogen (
80 mg/dL), prolonged PT/PTT, and elevated D-dimer.
Distractor Analysis:
①
Administer fresh frozen plasma (FFP): This is a correct and necessary medical order to replace clotting factors. However, it is an
implementation action, not the immediate priority assessment. The nurse must first assess the patient's most critical status before administering treatments.
②
Apply pressure to all bleeding sites: This is a supportive measure for external bleeding but does not address the imminent, invisible, and lethal threat of internal hemorrhage like ICH. It is a secondary intervention.
④
Prepare for immediate cesarean delivery: While
Watch out for confusion! delivery of the fetus and placenta is the definitive treatment for DIC caused by placental abruption or severe preeclampsia/HELLP syndrome, "preparing" is an action that follows the decision to deliver. The nurse's first responsibility is to assess and stabilize the mother. Furthermore, the question does not specify an obstetric emergency like abruption; the immediate threat is the mother's neurological status.
Related Concepts: This scenario highlights the
ABC (Airway, Breathing, Circulation) with a neurological priority adaptation in a specialized population. In a hemorrhagic crisis, Circulation is key, but in DIC with hypertension, the brain is the most vulnerable end-organ. Understanding the pathophysiology linking endothelial damage in preeclampsia to coagulopathy is essential.
Concept Summary
| Concept | Key Points |
| Disseminated Intravascular Coagulation (DIC) | Systemic activation of coagulation → microthrombi → consumption of platelets & factors → hemorrhage. Lab: ↓Platelets, ↓Fibrinogen, ↑PT/PTT, ↑D-dimer. |
| Severe Preeclampsia | BP ≥160/110 mmHg, proteinuria, end-organ dysfunction (CNS, hepatic, renal, hematologic). Can progress to eclampsia (seizures) or HELLP syndrome. |
| Priority in DIC with Preeclampsia | 1. Neurological assessment (for ICH). 2. Manage hypertension. 3. Replace blood products. 4. Prepare for delivery as indicated. |
| Intracranial Hemorrhage (ICH) Signs | Sudden severe headache, vision changes, nausea/vomiting, altered mental status, focal weakness, seizures. |
Side-by-Side Comparison!
| Intervention | Role & Priority | Rationale |
| Monitor for ICH (Correct Answer) | Key Point! Highest Priority - Assessment | Prevents the #1 cause of maternal death in this scenario. Must be continuous. |
| Administer FFP | High Priority - Implementation (Treatment) | Replaces clotting factors to correct coagulopathy, but follows assessment. |
| Apply Pressure to Bleeding Sites | Supportive Intervention | Manages visible blood loss but does not address systemic or internal bleeding. |
| Prepare for Cesarean Delivery | Definitive Treatment Preparation | Removes the inciting cause (placenta) but is not the nurse's first independent action. |
Anatomy, Physiology & Pharmacology Points
Pathophysiology Chain: Severe Preeclampsia → Endothelial damage & vasospasm → Platelet activation/consumption & release of tissue factor → Triggers DIC cascade → Widespread thrombosis & coagulopathy → Risk of hemorrhage, especially in the brain due to uncontrolled hypertension.
Key Lab Values:
- Platelets: Normal >150,000/mm³. Critical risk of spontaneous bleed at