After undergoing a thyroidectomy, a client is monitored for signs of damage to the parathyroid glands postoperatively. The nurse would determine which finding suggests damage to the parathyroid glands?

1. A

   Involuntary muscle contraction in the hands and feet

2. B

   Nausea & vomiting

3. C

   Bleeding at the incision site

4. D

   All of the above

Appeared in: JIPMER Pondicherry NO - 2022

Explanation

• Thyroidectomy poses a high risk of inadvertent injury or removal of the parathyroid glands due to their close anatomical proximity.
• Damage to the parathyroid glands leads to deficient Parathyroid Hormone (PTH) secretion, a condition known as hypoparathyroidism.
• Low PTH levels result in hypocalcemia (abnormally low blood calcium), as PTH is essential for maintaining calcium homeostasis.
• Hypocalcemia causes increased neuromuscular excitability, leading to a condition called tetany.
• The hallmark signs of tetany include involuntary muscle contractions, particularly carpopedal spasms affecting the hands and feet.

Why Other Options Were Wrong

• Option B: Nausea and vomiting are non-specific symptoms. While they can occur after surgery, they are most commonly side effects of anesthesia or opioid analgesics, not a direct sign of parathyroid damage.
• Option C: Bleeding at the incision site is a surgical complication related to hemostasis. It indicates hemorrhage, which can cause a hematoma and potentially compromise the airway, but it is not a sign of metabolic disturbance from parathyroid damage.
• Option D: This option is incorrect because nausea/vomiting and bleeding are not direct signs of parathyroid damage. The correct answer is a specific sign, not a collection of unrelated symptoms.

Related Visual

Clinical Relevance

• Nursing practice connection: Safe nursing care depends on performing Post-operative complications of thyroidectomy, specifically hypocalcemia due to iatrogenic hypoparathyroidism in the correct sequence, documenting the action clearly, and monitoring for the expected response.
• A nurse's primary role post-thyroidectomy is vigilant monitoring for complications. Recognizing the early signs of hypocalcemia, such as perioral tingling, numbness in the fingers/toes, and muscle twitching, is critical for timely intervention.
• Emergency equipment, including a tracheostomy set and IV calcium gluconate, must be readily available at the bedside for any patient post-thyroidectomy.
• What if? If the patient with muscle twitching also develops a high-pitched respiratory sound (stridor), the nurse must recognize this as a potential laryngospasm, a life-threatening airway emergency caused by severe hypocalcemia. The immediate priority is to call for emergency assistance and prepare to administer IV calcium and secure the airway.

How to Approach the Question

• First, identify the key procedure in the question: a thyroidectomy.
• Recall the major complications associated with this specific surgery. The proximity of the parathyroid glands and recurrent laryngeal nerve to the thyroid makes them vulnerable.
• Connect the potential damage (to parathyroid glands) with its physiological consequence (impaired calcium regulation).
• Link the physiological change (hypocalcemia) to its classic clinical manifestation (neuromuscular hyperexcitability or tetany).
• Evaluate each option to see which one directly represents a sign of tetany. Involuntary muscle contractions are a textbook example.
• Rule out the other options by identifying them as non-specific post-op symptoms (nausea) or a different type of surgical complication (bleeding).

Concept Tested & Keywords

• Concept Tested: Post-operative complications of thyroidectomy, specifically hypocalcemia due to iatrogenic hypoparathyroidism.
• Stem keywords: thyroidectomy, parathyroid glands, postoperatively, damage
• Lead-in keywords: suggests
• Clinical cues: The context is a post-operative client after a thyroidectomy, which points towards specific, known complications of this procedure.

Question ID

QA5Gjctm6UZ6tUhTqjG5kU

Copy ID

Reference Book

E6 Nursing Brunner Adult Health 3SA Vol 1 Part 4 pp. 30-32, 27-29

E6 Physiology Essentials Sembulingam 10e Part 2 p. 51-53