NCLEX Thyroid & Adrenal: Storm, Thyroidectomy, Addison

bolt The 60-second version

check_circleHypothyroidism slows everything (fatigue, cold intolerance, weight gain, constipation, bradycardia); hyperthyroidism speeds everything (heat intolerance, weight loss, tachycardia, tremor, anxiety).
check_circleLevothyroxine: take on an empty stomach, about 30–60 minutes before breakfast; effects take weeks; start low in older adults and clients with heart disease; report chest pain or palpitations.
check_circleThyroid storm: high fever, tachycardia, agitation, and confusion; give antithyroid drugs, beta blockers, and steroids as ordered, and cool the client (avoid aspirin).
check_circleAfter thyroidectomy: watch the airway (tracheostomy set at bedside), voice changes, and hypocalcemia (tingling, Chvostek and Trousseau signs); keep IV calcium available.
check_circleAddison disease (low cortisol and aldosterone): hypotension, hyponatremia, hyperkalemia, hypoglycemia, hyperpigmentation; lifelong replacement with stress dosing.
check_circleCushing syndrome (excess cortisol): central obesity, moon face, hyperglycemia, hypokalemia, hypertension, fragile skin, infection and fracture risk.

target What you'll be able to do · aligned to NCLEX-RN Test Plan · Physiological Adaptation; Pharmacological Therapies

PHYS ADAPTDistinguish hypothyroidism from hyperthyroidism and recognize thyroid emergencies.
PHARMTeach levothyroxine and antithyroid drug safety.
RISK REDPrioritize airway, bleeding, calcium, and voice after thyroidectomy.
PHYS ADAPTCompare Addison disease and Cushing syndrome and their nursing priorities.

Hypothyroidism vs hyperthyroidism

Most findings are opposite.

Hypo vs hyper. Older adults with hypothyroidism may present only with confusion or depression.

Drug	Nursing points
Levothyroxine (hypothyroidism)	Empty stomach, same time daily; separate from calcium, iron, and antacids; lifelong; report signs of overreplacement
Methimazole (hyperthyroidism)	Report sore throat or fever (agranulocytosis); monitor liver tests
Propylthiouracil	Often preferred in the first trimester of pregnancy; liver toxicity risk
Radioactive iodine	Contraindicated in pregnancy; follow radiation safety instructions; hypothyroidism may follow
Beta blockers	Control tachycardia and tremor

Thyroid labs and dose changes are spaced weeks apart because levothyroxine has a long half-life.

Thyroid emergencies

Both extremes can be fatal.

Thyroid emergencies. Avoid aspirin in thyroid storm (it can raise free thyroid hormone); avoid sedatives in myxedema coma.

After thyroidectomy

The priorities are airway, calcium, and voice.

After thyroidectomy. Keep a tracheostomy set, suction, oxygen, and IV calcium gluconate at the bedside.

Adrenal disorders

Cortisol and aldosterone problems produce mirror-image findings.

Adrenal disorders. Long-term steroid therapy is the most common cause of Cushing syndrome.

Finding	Addison disease	Cushing syndrome
Blood pressure	Low	High
Glucose	Low	High
Sodium	Low	High or normal
Potassium	High	Low
Appearance	Weight loss, bronze skin	Moon face, buffalo hump, central obesity, thin skin, striae
Nursing priority	Fluids, steroid replacement, stress dosing teaching	Infection prevention, glucose and BP control, fall and fracture prevention

Teach clients with adrenal insufficiency to carry medical ID and to increase steroid doses during illness as instructed.

NGN-style case

Post-operative calcium and airway.

functions Clinical judgment case — tingling after surgery

Twelve hours after total thyroidectomy, a client reports tingling around the mouth and fingers. The nurse taps the facial nerve and the mouth twitches. What should the nurse do?

Recognize cues: perioral tingling and a positive Chvostek sign.
Analyze: hypocalcemia from parathyroid injury or removal.
Assess airway (laryngospasm risk) and notify the provider promptly.
Anticipate IV calcium gluconate and a serum calcium level; keep emergency airway equipment ready.

Answer. Suspect hypocalcemia: assess the airway, notify the provider, and prepare IV calcium gluconate.

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