DHS Staff Nurse - 2018 (Shift-2nd)
Pharmacology
Easy

A physician has written an order to administer Methergine to a postpartum client with uterine atony. The nurse would contact the physician to verify the order if which of the following conditions were present in the mother?

Appeared in: DHS Staff Nurse - 2018 (Shift-2nd)

Explanation

  • Methergine (methylergonovine) is an ergot alkaloid that causes potent vasoconstriction in addition to uterine contraction.
  • Administering a vasoconstrictor to a person who is already hypertensive can lead to a dangerous spike in blood pressure.
  • This increased blood pressure can result in severe complications such as a hypertensive crisis, stroke, or seizure.
  • Therefore, hypertension is a primary contraindication for the use of Methergine, and the nurse has a duty to question the order.

Why Other Options Were Wrong

  • Option B: Excessive lochia is a sign of uterine atony and postpartum hemorrhage.
  • Option C: Difficulty locating the uterine fundus suggests a soft, boggy, and atonic uterus.
  • Option D: Excessive bleeding (saturating more than one peripad per hour) is a hallmark of postpartum hemorrhage, often due to uterine atony.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: Use the key finding related to Pharmacology: Contraindications of Uterotonic Medications to guide bedside assessment, documentation, and the next nursing action.
  • A nurse's primary responsibility before administering Methergine is to check the client's blood pressure. A reading greater than 140/90 mmHg requires holding the medication and notifying the provider.
  • Failure to recognize this contraindication can lead to severe maternal harm, including cerebrovascular accident (stroke) or eclamptic seizures.
  • This scenario highlights the nurse's crucial role as a patient safety advocate, responsible for verifying medication orders that may be inappropriate based on the client's current clinical status.
How to Approach the Question
  • First, identify the core of the question: it asks for a contraindication to the drug Methergine.
  • Recall the drug class and primary action of Methergine (methylergonovine). It is an ergot alkaloid that causes uterine contraction.
  • Crucially, remember its major side effect/contraindication. Methergine is a potent vasoconstrictor.
  • Analyze the options. Three options (B, C, D) describe signs of uterine atony and postpartum hemorrhage: excessive lochia, a boggy uterus, and heavy bleeding.
  • Recognize that these three options are indications for the drug, as Methergine is used to treat uterine atony.
  • Identify the remaining option, Hypertension, as the contraindication. A vasoconstrictor should not be given to someone with high blood pressure.
Concept Tested & Keywords
  • Concept Tested: Pharmacology: Contraindications of Uterotonic Medications
  • Stem keywords: Methergine, postpartum, uterine atony, verify the order
  • Lead-in keywords: contact the physician to verify
  • Clinical cues: Postpartum client with uterine atony
  • Negative lead-in flag: false

Question ID

Qf3gy9rTO9_YKI69fKOyPv

Reference Book

E6 Obstetrics Williams p. 49-70

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