SCTIMST Staff Nurse - 2016
Obstetrics & Gynecology
Easy

Contraindications for using oral contraceptives?

Appeared in: SCTIMST Staff Nurse - 2016

Explanation

  • Thrombophlebitis, an inflammation of a vein due to a blood clot, is an absolute contraindication for using combined oral contraceptives (COCs).
  • The estrogen component in COCs increases the liver's production of clotting factors and decreases natural anticoagulants, creating a hypercoagulable (pro-clotting) state.
  • This state significantly elevates the risk for serious thromboembolic events, including deep vein thrombosis (DVT) and pulmonary embolism (PE).
  • Therefore, women with a current or past history of thrombophlebitis or other thromboembolic disorders should not use estrogen-containing contraceptives.

Why Other Options Were Wrong

  • Option B: Urinary tract infections (UTIs) are not a contraindication for the use of oral contraceptives. While some studies note a higher frequency of bacteriuria in OCP users, it does not prevent their use.
  • Option C: Ulcerative colitis is an inflammatory bowel disease and is not considered a standard contraindication for the use of oral contraceptives.
  • Option D: Menorrhagia, or heavy menstrual bleeding, is a common reason to prescribe oral contraceptives. OCPs help regulate the menstrual cycle and reduce the amount of bleeding, making it an indication for use, not a contraindication.

Related Visual

column chart listing absolute and relative contraindications for combined oral contraceptives. Use simple icons for key conditions like a blood clot for thrombophlebitis, a ciga...
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Contraindications for Oral Contraceptive Pills (OCPs) as background academic context rather than a clinical decision trigger.
  • A nurse's primary responsibility before administering or educating about OCPs is to conduct a thorough health history. This includes screening for personal or family history of blood clots, stroke, heart disease, uncontrolled hypertension, liver disease, and smoking status, especially in women over 35.
  • Patient education is critical. The nurse must teach the patient the warning signs of a blood clot, using the acronym ACHES: Abdominal pain, Chest pain, Headaches (severe), Eye problems (blurred vision), and Severe leg pain.
  • What if? If a patient has a history of migraines with aura, this would also be an absolute contraindication due to an increased risk of stroke. The nurse would need to educate the patient on safer, non-estrogen-containing alternatives like progestin-only pills, an IUD, or barrier methods.
How to Approach the Question
  • Identify the core of the question: The question asks to identify a contraindication for using oral contraceptives.
  • Recall the primary mechanism and major risks associated with combined oral contraceptives (OCPs). The most significant risk is related to the estrogen component's effect on blood coagulation.
  • Remember that estrogen increases the risk of venous thromboembolism (VTE).
  • Evaluate each option based on this knowledge. Thrombophlebitis is inflammation of a vein associated with a blood clot, which directly relates to the VTE risk.
  • Analyze the other options. Menorrhagia (heavy bleeding) is a condition often treated with OCPs, making it an indication. Urinary tract infections and ulcerative colitis are not established contraindications.
  • Conclude that thrombophlebitis is the only valid contraindication among the choices provided.
Concept Tested & Keywords
  • Concept Tested: Contraindications for Oral Contraceptive Pills (OCPs)
  • Stem keywords: Contraindications, oral contraceptives
  • Lead-in keywords: BEST, MOST RELEVANT CLUE
  • Negative lead-in flag: false

Question ID

QVb0YxKFqqM5U1uxTpkHLs

Reference Book

E6 Obstetrics Williams p. 82-94

E6 Pharmacology Katzung 16e p. 1143-1145

E6 Pharmacology Nursing Lilley 11e Part 2 p. 244-246

Practise the full SCTIMST Staff Nurse - 2016

Attempt every question from this paper in a timed mock, then review the full solution for each one.