NLE Endocrine & Metabolic Nursing — Pituitary, Thyroid & Parathyroid DisordersConcept Map

Concept

Posterior Pituitary Disorders

Sub Concepts

• Syndrome of Inappropriate ADH (SIADH)
• Diabetes Insipidus (DI)
• ADH physiology and feedback mechanisms
• Water retention vs. water loss

Relationship To Central

Antidiuretic Hormone (ADH) dysregulation causing water and sodium balance disruption

Concept

Thyroid Disorders

Sub Concepts

• Hyperthyroidism & Graves' Disease
• Thyroid Storm (Thyrotoxic Crisis)
• Hypothyroidism
• Myxedema Coma
• Thyroid function tests (TSH, Free T4/T3)

Relationship To Central

T3/T4 dysregulation causing metabolic acceleration or deceleration with potential life-threatening crises

Concept

Parathyroid Disorders

Sub Concepts

• Hyperparathyroidism
• Hypoparathyroidism
• Calcium and phosphate metabolism
• Neuromuscular manifestations

Relationship To Central

Parathyroid Hormone (PTH) dysregulation causing calcium-phosphate imbalance

Concept

Nursing Management Priorities

Sub Concepts

• Fluid and electrolyte monitoring (I&O, daily weight, serum sodium)
• Neurological assessment (level of consciousness, seizure precautions)
• Cardiac monitoring and vital signs
• Post-operative care (thyroidectomy, parathyroidectomy)
• Medication administration and patient education
• Safety and environmental modifications

Relationship To Central

Assessment, intervention, and patient education following nursing process and NANDA diagnoses

Concept

Emergency Crises & Life-Threatening Complications

Sub Concepts

• Thyroid Storm
• Myxedema Coma
• Severe Hyponatremia with seizures (SIADH)
• Hypercalcemic Crisis
• Hypocalcemic Tetany/Laryngospasm

Relationship To Central

Acute decompensation requiring immediate intervention to prevent mortality

To

Dilutional Hyponatremia

From

SIADH

Strength

strong

Relationship

SIADH causes excess water retention leading to dilution of serum sodium concentration

To

Hypernatremia

From

Diabetes Insipidus

Strength

strong

Relationship

DI causes water loss exceeding sodium loss, concentrating serum sodium

To

Thyroid Storm

From

Hyperthyroidism

Strength

strong

Relationship

Uncontrolled or untreated hyperthyroidism precipitated by stress, infection, or surgery escalates to thyroid storm

To

Myxedema Coma

From

Hypothyroidism

Strength

strong

Relationship

Severe decompensated hypothyroidism triggered by cold, infection, or sedatives progresses to myxedema coma

To

Exophthalmos

From

Graves Disease

Strength

strong

Relationship

Autoimmune thyroid disease specific to Graves causes orbital tissue expansion and eye protrusion

To

Hypercalcemia

From

Hyperparathyroidism

Strength

strong

Relationship

Excess PTH pulls calcium from bone and increases GI/renal absorption, raising serum calcium

To

Hypocalcemia

From

Hypoparathyroidism

Strength

strong

Relationship

Deficient PTH reduces bone release and renal reabsorption of calcium, lowering serum calcium

To

Chvostek and Trousseau Signs

From

Hypocalcemia

Strength

strong

Relationship

Low calcium increases neuromuscular excitability, producing characteristic spasm signs

To

Hypothyroidism Management

From

Levothyroxine

Strength

strong

Relationship

Synthetic T4 replacement restores thyroid hormone levels in hypothyroidism

To

Hyperthyroidism Management

From

Methimazole and PTU

Strength

strong

Relationship

Antithyroid drugs inhibit thyroid hormone synthesis to treat hyperthyroidism

To

Thyroid Function Screening

From

TSH

Strength

strong

Relationship

TSH is the most sensitive screening test; it moves opposite to thyroid hormone in primary disease

To

SIADH Treatment

From

Fluid Restriction

Strength

strong

Relationship

First-line management to reduce water reabsorption and correct dilutional hyponatremia

To

Diabetes Insipidus Treatment

From

DDAVP

Strength

strong

Relationship

Synthetic ADH analog replaces deficient hormone to reduce polyuria and prevent dehydration

To

Post-operative Hypocalcemia

From

Thyroidectomy

Strength

strong

Relationship

Accidental parathyroid injury during thyroidectomy causes hypocalcemia and tetany

To

Hypothyroidism

From

Radioactive Iodine I-131

Strength

strong

Relationship

I-131 ablates thyroid tissue; most patients eventually become hypothyroid and require lifelong levothyroxine

To

Hyperparathyroidism Cure

From

Parathyroidectomy

Strength

strong

Relationship

Surgical removal of hyperactive parathyroid tissue provides definitive treatment

To

SIADH Nursing Care

From

Seizure Precautions

Strength

strong

Relationship

Severe hyponatremia from SIADH causes cerebral edema and seizures requiring safety measures

To

ADH Disorder Assessment

From

Intake and Output Monitoring

Strength

strong

Relationship

Meticulous I&O tracking distinguishes SIADH (low output) from DI (massive output)

To

Parathyroid Metabolism

From

Calcium and Phosphate

Strength

strong

Relationship

PTH and calcium move in opposite directions; they have an inverse relationship

To

Post-thyroidectomy Nursing

From

Airway Protection

Strength

strong

Relationship

Airway is the top post-operative priority; tracheostomy set and oxygen must be at bedside

To

Patient Education

From

Levothyroxine Absorption

Strength

strong

Relationship

Must be taken on empty stomach 30-60 min before food; separate from calcium/iron supplements

To

Hyperthyroidism Symptom Relief

From

Propranolol

Strength

strong

Relationship

Beta-blocker controls tachycardia, tremor, and palpitations while antithyroid drugs work

To

Pre-operative Thyroidectomy Prep

From

Lugol Iodine Solution

Strength

strong

Relationship

Reduces gland vascularity 10-14 days before surgery; given after antithyroid drugs to prevent hormone release

To

Myxedema Coma Management

From

Gradual Warming

Strength

strong

Relationship

Passive warming required; active warming causes vasodilation and shock in hypothermia

To

Thyroid Storm Management

From

Cooling without Aspirin

Strength

strong

Relationship

Aspirin displaces thyroid hormone from protein, worsening release; use other cooling methods

To

SIADH Assessment

From

Daily Weight Monitoring

Strength

moderate

Relationship

Weight gain reflects water retention in SIADH; essential to assess fluid restriction effectiveness

To

Sodium Imbalance Diagnosis

From

Serum Osmolality

Strength

moderate

Relationship

Confirms SIADH (low osmolality) vs. DI (high osmolality) and guides fluid management

To

Autoimmune Hypothyroidism

From

Hashimoto Thyroiditis

Strength

strong

Relationship

Most common cause of hypothyroidism in iodine-sufficient regions

To

Thyroid Disorder Confirmation

From

Free T4 and T3 Levels

Strength

moderate

Relationship

Used after TSH to confirm diagnosis and determine disease severity

To

Hyperparathyroidism Management

From

Bisphosphonates and Calcitonin

Strength

moderate

Relationship

Pharmacologic agents to lower serum calcium while awaiting surgical definitive treatment