A postpartum client delivered a 4,200-gram infant 2 hours ago and is experiencing heavy vaginal bleeding. The nurse assesses a boggy, enlarged uterus that does not respond to fundal massage. Vital signs are: BP 85/55 mmHg, HR 130 bpm, RR 26/min. Which nursing intervention should be implemented first?
The nurse is caring for a postpartum client with uterine atony and hemorrhage who requires immediate intervention to prevent further complications.
1Administer oxygen at 2 L/min via nasal cannula
2Insert a large-bore IV catheter and begin fluid resuscitation
3Administer methylergonovine (Methergine) as ordered✓ 정답
4Prepare the client for emergency surgery
해설
Methylergonovine is the first intervention for uterine atony unresponsive to massage, as it directly stimulates uterine contraction to control bleeding. Other options (oxygen, IV fluids, surgery) are supportive or secondary when pharmacologic measures fail.
Core Nursing ExplanationKey Concept Analysis: This question tests the priority nursing intervention for a postpartum hemorrhage (PPH) due to uterine atony (a soft, boggy uterus that fails to contract). Uterine atony is the most common cause of PPH. The scenario describes a high-risk patient (delivered a large infant >4000g) with signs of active hemorrhage (heavy bleeding, boggy uterus unresponsive to massage) and early hypovolemic shock (tachycardia, hypotension, tachypnea). The immediate goal is to stop the bleeding at its source.
Answer Rationale: Key Point! The first-line pharmacological treatment for uterine atony is uterotonic medications. Methylergonovine (Methergine) is a potent ergot alkaloid that causes sustained uterine contraction, directly addressing the cause of the hemorrhage. Administering it as ordered is the first intervention because it can rapidly control the bleeding, potentially preventing the need for more invasive measures. The nurse should administer it while simultaneously preparing for other supportive measures.
Distractor Analysis:
Watch out for confusion! While inserting a large-bore IV and beginning fluid resuscitation (Option ②) is critical for managing hypovolemia, it is a supportive measure that treats the consequence (shock) but not the cause (uterine atony). The bleeding must be stopped first; otherwise, you are just "filling a leaking bucket."
Watch out for confusion!Administering oxygen (Option ①) supports tissue perfusion but is a secondary intervention to the immediate need to control hemorrhage.
Watch out for confusion!Preparing for emergency surgery (Option ④) (e.g., dilation and curettage, uterine artery embolization, or hysterectomy) is a definitive intervention but is typically reserved for when pharmacological and mechanical measures (like uterine massage and uterotonics) have failed. It is not the *first* intervention.
Related Concepts: The management of postpartum hemorrhage follows a stepwise approach: 1) Identify the cause (the 4 T's: Tone, Trauma, Tissue, Thrombin), 2) Initiate first-line measures (uterine massage, uterotonic drugs), 3) Provide supportive care (IV fluids, oxygen, monitoring), and 4) Escalate to procedural/surgical interventions if bleeding persists. This question emphasizes the nurse's role in initiating the correct pharmacological treatment promptly.
Concept Summary
Concept
Description
Clinical Significance
Uterine Atony
Failure of the uterine muscle to contract adequately after delivery, leading to hemorrhage.
Most common cause of PPH. Risk factors include overdistended uterus (macrosomia, multiples), prolonged labor, and grand multiparity.
Postpartum Hemorrhage (PPH)
Blood loss of ≥1000 mL or blood loss accompanied by signs/symptoms of hypovolemia within 24 hours of birth.
A leading cause of maternal mortality. Requires rapid, systematic intervention.
Methylergonovine (Methergine)
Ergot alkaloid that causes sustained uterine contraction by stimulating alpha-adrenergic and serotonin receptors.
First-line drug for atony. Contraindicated in hypertension, preeclampsia, and coronary artery disease due to vasoconstrictive effects.
Hypovolemic Shock in PPH
State of inadequate tissue perfusion due to significant blood loss. Early signs: tachycardia, tachypnea, narrowed pulse pressure.
Nursing must monitor for signs of shock (e.g., BP 85/55, HR 130) while treating the cause.
Side-by-Side Comparison!
First-Line Uterotonic for Atony
Mechanism of Action
Key Nursing Considerations
Oxytocin (Pitocin)
Stimulates uterine contractions via oxytocin receptors. First drug typically given IV after delivery.
Used prophylactically. Can cause water intoxication (antidiuretic effect) with high doses/long infusions.
Methylergonovine (Methergine)
Causes sustained tetanic contractions via ergot alkaloid action.
Given IM. Monitor BP closely; contraindicated in hypertensive disorders. Causes nausea/vomiting.
Carboprost (Hemabate)
Prostaglandin F2α analog that stimulates uterine muscle.
Given IM. Can cause severe bronchospasm (contraindicated in asthma), diarrhea, fever.
Misoprostol (Cytotec)
Prostaglandin E1 analog.
Given sublingually, rectally, or vaginally. Useful in resource-limited settings. Can cause significant fever.
Anatomy, Physiology & Pharmacology Points
Physiology: After placental separation, the spiral arteries in the uterine wall are exposed. Uterine muscle contraction ("living ligature" effect) is essential to constrict these vessels and prevent hemorrhage.
Pharmacology: Methylergonovine works primarily on serotonin receptors and alpha-adrenergic receptors in the uterine smooth muscle, leading to a powerful, prolonged contraction. Its vasoconstrictive effects on blood vessels are why it raises blood pressure.
Assessment: A boggy uterus feels soft, mushy, and enlarged upon palpation, indicating poor muscle tone. A well-contracted uterus should feel firm, like a grapefruit, at the level of the umbilicus or below.
Memory Tips
The 4 T's of PPH Cause: Tone (Atony - most common), Trauma (laceration), Tissue (retained placenta), Thrombin (coagulopathy).
Drug Order for Atony: Remember "O.M.C." as a common sequence: Oxytocin first, then Methergine, then Carboprost if needed.
Shock Signs vs. Cause: Think "Stop the leak before you fill the tank." Treat the cause (uterus) before just treating the symptoms (low volume).
High-Frequency NCLEX Topics
Postpartum hemorrhage and its management are High Yield topics. The NCLEX often tests:
1. Priority Setting: What do you do first? (Almost always a direct intervention for the cause before supportive care).
2. Medication Knowledge: Actions, routes, and major contraindications of uterotonics.
3. Risk Factor Recognition: Macrosomia (>4000g), multiples, prolonged labor, etc.
4. Assessment Findings: Identifying a boggy uterus and signs of hypovolemic shock.
Watch Out for Question Variations!
Variation 1 (Assessment Focus): "The nurse palpates a boggy uterus displaced to the right. What should the nurse suspect?" Answer: Bladder distention (a full bladder can displace the uterus and prevent contraction).
Variation 2 (Medication Contraindication): "A client with PPH has a history of asthma. Which medication should the nurse question?" Answer: Carboprost (Hemabate) due to risk of bronchospasm.
Variation 3 (Priority with Stable Vitals): If the patient is bleeding but vital signs are normal, the first intervention might still be uterine massage and administer ordered uterotonic, but the question may shift to which assessment is most critical next (e.g., checking for perineal lacerations).
Nursing Clinical Practice GuideClinical Scenario: You are the nurse on the postpartum unit. Your patient, G2P2, who delivered a large baby vaginally 2 hours ago, calls you to the room stating she feels a "gush" of blood. You find saturated perineal pads, a soft, enlarged uterus at the level of the umbilicus that does not firm with massage, and the patient is becoming pale and anxious.
Nursing Intervention Strategy:
1Immediate Action (Simultaneous if possible)- Call for help (activate emergency response per hospital protocol).
- Perform bimanual uterine massage while another nurse prepares the medication.
- Administer methylergonovine IM as ordered.
2Supportive & Monitoring- Establish or ensure patent large-bore IV access (14-18 gauge).
- Begin rapid infusion of isotonic crystalloids (e.g., Lactated Ringer's or Normal Saline) per protocol.
- Apply oxygen via non-rebreather mask at 10-15 L/min to maximize oxygenation.
- Continuously monitor vital signs, oxygen saturation, and level of consciousness.
- Quantify blood loss (weigh pads/chucks).
3Collaboration & Escalation- Notify the obstetric provider immediately.
- Prepare for additional medications (second-line uterotonics).
- Draw stat labs: CBC, coagulation panel, type and crossmatch for blood products.
- Assist with procedures (e.g., examination for lacerations, manual removal of placental fragments).
Patient Safety and Precautions:
1MethylergonovineVerify blood pressure before administration. Hold and notify the provider if systolic BP is >140 mmHg. Monitor for severe side effects: hypertension, chest pain, headache, nausea/vomiting.
2Fluid ResuscitationBeware of fluid overload, especially in patients with cardiac history. Monitor lung sounds.
3Universal PrecautionsUse personal protective equipment (PPE) as exposure to blood is significant.
Nursing Procedure & Medication FlowAdministering Methylergonovine (Methergine) for Uterine Atony:
1AssessmentConfirm order. Assess vital signs, especially BP. Assess uterine tone and fundal height. Assess bleeding amount.
2PreparationObtain prefilled syringe (typical dose 0.2 mg). Perform rights of medication administration.
3AdministrationAdminister deep IM injection, typically in the vastus lateralis or ventrogluteal muscle. Massage the site after injection to promote absorption.
4Monitoring & Evaluation- Reassess uterine tone within 2-5 minutes. It should become firm.
- Monitor vaginal bleeding; it should significantly decrease.
- Re-check BP within 15-30 minutes and monitor for hypertensive response.
- Document medication given, time, route, site, and patient response.
A Word from Your Senior Nurse
"In the controlled chaos of a postpartum hemorrhage, your knowledge and calm action save lives. Remember your ABCs with an obstetric twist: Assess the uterus (Airway is usually patent), Bleeding (find and treat the cause), Circulation (support with fluids and blood). Don't just memorize that 'Methergine is the answer'—understand why it works and when to give it. In clinical practice, you'll be doing uterine massage with one hand and calling for help with the other. That ability to multitask and prioritize under pressure is what makes a great nurse. For the NCLEX, they're testing if you can think like that nurse."
Uterine Atony — Failure of the uterine muscle to contract adequately after delivery of the placenta, leading to persistent bleeding from the placental site. It is the most common cause of postpartum hemorrhage.
Methylergonovine — An ergot alkaloid medication that stimulates sustained contractions of uterine smooth muscle. It is a first-line treatment for uterine atony but is contraindicated in patients with hypertension or vascular disease.
Postpartum Hemorrhage — Excessive bleeding (typically defined as blood loss ≥1000 mL or accompanied by signs of hypovolemia) within 24 hours after childbirth. It is a major cause of maternal morbidity and mortality.
Fundal Massage — A manual nursing technique where one hand is placed on the lower abdomen to support the uterus while the other hand massages the uterine fundus in a circular motion. It is the first non-pharmacological intervention for a boggy uterus to stimulate contraction.
Hypovolemic Shock — A life-threatening condition resulting from significant loss of blood or fluids, leading to inadequate tissue perfusion. Early signs include tachycardia, tachypnea, and hypotension, as seen in this scenario.