General Pest Management Category 7A Exam
2026/2027 | 350 Verified Questions & Answers |
Commercial Pesticide Applicator Certification Prep | 7
Core Domains | Instant Download
Pituitary & Hypothalamic Disorders
1. Which gland is known as the "master gland" because it controls other
endocrine glands?
• A. Thyroid
• B. Pineal
• C. Anterior pituitary
• D. Hypothalamus
Rationale: The anterior pituitary secretes tropic hormones (TSH, ACTH, FSH,
LH) that regulate other endocrine glands. The hypothalamus controls the pituitary,
but the pituitary is considered the "master gland" because of its direct regulation
of multiple target organs.
2. The hypothalamus connects the nervous and endocrine systems primarily
through the:
• A. Thalamus
• B. Infundibulum and hypophyseal portal system
• C. Corpus callosum
• D. Medulla oblongata
Rationale: The infundibulum (stalk) connects the hypothalamus to the
pituitary, and the hypophyseal portal system transports releasing hormones from
the hypothalamus to the anterior pituitary.
3. Which hormone is produced by the posterior pituitary?
, • A. Growth hormone (GH)
• B. Oxytocin
• C. Prolactin
• D. Thyroid-stimulating hormone (TSH)
Rationale: The posterior pituitary stores and releases oxytocin and ADH
(vasopressin), which are synthesized in the hypothalamus. GH, prolactin, and TSH
are anterior pituitary hormones.
4. A patient with suspected diabetes insipidus has a urine specific gravity of
1.002 and serum sodium of 152 mEq/L. Which condition should the nurse
suspect?
• A. SIADH
• B. Diabetes insipidus
• C. Diabetes mellitus
• D. Addison disease
Rationale: Diabetes insipidus is caused by ADH deficiency, leading to massive
urine output with very dilute urine (specific gravity < 1.005) and hypernatremia
from free water loss. SIADH presents with hyponatremia and concentrated urine.
5. Which medication is the treatment of choice for central diabetes insipidus?
• A. Tolvaptan
• B. Desmopressin (DDAVP)
• C. Regular insulin
• D. Hydrocortisone
Rationale: Desmopressin (DDAVP), a synthetic ADH analog, replaces the
deficient hormone in central DI. Tolvaptan is used for SIADH. Insulin is for diabetes
mellitus, and hydrocortisone is for adrenal insufficiency.
,6. A client with SIADH has a serum sodium of 118 mEq/L with confusion. Which
intervention is the priority?
• A. Administer hypertonic saline (3% NaCl) via infusion pump
• B. Restrict fluids to 500 mL/day
• C. Administer demeclocycline
• D. Encourage increased oral water intake
Rationale: Severe hyponatremia (Na < 120 mEq/L) with neurologic symptoms
is a medical emergency requiring hypertonic saline to prevent cerebral edema and
seizure. Fluid restriction is used for mild cases. Demeclocycline is a later
intervention.
7. After pituitary surgery, the nurse should assess the client for which of the
following?
• A. Diabetes insipidus
• B. Hyperglycemia
• C. Hypertension
• D. Bradycardia
Rationale: Post-pituitary surgery, the most common complication is diabetes
insipidus due to manipulation of the pituitary stalk and posterior pituitary. The
nurse monitors for polyuria, polydipsia, and dilute urine.
8. Which finding is characteristic of acromegaly?
• A. Weight loss and heat intolerance
• B. Enlarged hands, feet, and jaw
• C. Hypotension and hyperpigmentation
• D. Muscle weakness and hypokalemia
, Rationale: Acromegaly results from excess growth hormone in adults, causing
enlargement of bones in the hands, feet, and jaw, along with soft tissue
thickening. Weight loss and heat intolerance are signs of hyperthyroidism.
9. A patient with a pituitary adenoma reports visual field defects. Which
structure is most likely compressed?
• A. Optic nerve
• B. Optic chiasm
• C. Trigeminal nerve
• D. Oculomotor nerve
Rationale: The pituitary gland sits in the sella turcica, directly below the optic
chiasm. A pituitary adenoma expanding upward compresses the optic chiasm,
causing bitemporal hemianopsia (loss of peripheral vision).
10. Which hormone increases blood glucose levels by stimulating glycogenolysis
and gluconeogenesis?
• A. Insulin
• B. Glucagon
• C. Somatostatin
• D. Amylin
Rationale: Glucagon (secreted by alpha cells of the pancreas) raises blood
glucose by promoting glycogenolysis and gluconeogenesis. Insulin lowers glucose.
Somatostatin inhibits hormone secretion, and amylin slows gastric emptying.
Thyroid & Parathyroid Disorders
11. Calcitonin is secreted by which cells of the thyroid gland?
• A. Follicular cells
2026/2027 | 350 Verified Questions & Answers |
Commercial Pesticide Applicator Certification Prep | 7
Core Domains | Instant Download
Pituitary & Hypothalamic Disorders
1. Which gland is known as the "master gland" because it controls other
endocrine glands?
• A. Thyroid
• B. Pineal
• C. Anterior pituitary
• D. Hypothalamus
Rationale: The anterior pituitary secretes tropic hormones (TSH, ACTH, FSH,
LH) that regulate other endocrine glands. The hypothalamus controls the pituitary,
but the pituitary is considered the "master gland" because of its direct regulation
of multiple target organs.
2. The hypothalamus connects the nervous and endocrine systems primarily
through the:
• A. Thalamus
• B. Infundibulum and hypophyseal portal system
• C. Corpus callosum
• D. Medulla oblongata
Rationale: The infundibulum (stalk) connects the hypothalamus to the
pituitary, and the hypophyseal portal system transports releasing hormones from
the hypothalamus to the anterior pituitary.
3. Which hormone is produced by the posterior pituitary?
, • A. Growth hormone (GH)
• B. Oxytocin
• C. Prolactin
• D. Thyroid-stimulating hormone (TSH)
Rationale: The posterior pituitary stores and releases oxytocin and ADH
(vasopressin), which are synthesized in the hypothalamus. GH, prolactin, and TSH
are anterior pituitary hormones.
4. A patient with suspected diabetes insipidus has a urine specific gravity of
1.002 and serum sodium of 152 mEq/L. Which condition should the nurse
suspect?
• A. SIADH
• B. Diabetes insipidus
• C. Diabetes mellitus
• D. Addison disease
Rationale: Diabetes insipidus is caused by ADH deficiency, leading to massive
urine output with very dilute urine (specific gravity < 1.005) and hypernatremia
from free water loss. SIADH presents with hyponatremia and concentrated urine.
5. Which medication is the treatment of choice for central diabetes insipidus?
• A. Tolvaptan
• B. Desmopressin (DDAVP)
• C. Regular insulin
• D. Hydrocortisone
Rationale: Desmopressin (DDAVP), a synthetic ADH analog, replaces the
deficient hormone in central DI. Tolvaptan is used for SIADH. Insulin is for diabetes
mellitus, and hydrocortisone is for adrenal insufficiency.
,6. A client with SIADH has a serum sodium of 118 mEq/L with confusion. Which
intervention is the priority?
• A. Administer hypertonic saline (3% NaCl) via infusion pump
• B. Restrict fluids to 500 mL/day
• C. Administer demeclocycline
• D. Encourage increased oral water intake
Rationale: Severe hyponatremia (Na < 120 mEq/L) with neurologic symptoms
is a medical emergency requiring hypertonic saline to prevent cerebral edema and
seizure. Fluid restriction is used for mild cases. Demeclocycline is a later
intervention.
7. After pituitary surgery, the nurse should assess the client for which of the
following?
• A. Diabetes insipidus
• B. Hyperglycemia
• C. Hypertension
• D. Bradycardia
Rationale: Post-pituitary surgery, the most common complication is diabetes
insipidus due to manipulation of the pituitary stalk and posterior pituitary. The
nurse monitors for polyuria, polydipsia, and dilute urine.
8. Which finding is characteristic of acromegaly?
• A. Weight loss and heat intolerance
• B. Enlarged hands, feet, and jaw
• C. Hypotension and hyperpigmentation
• D. Muscle weakness and hypokalemia
, Rationale: Acromegaly results from excess growth hormone in adults, causing
enlargement of bones in the hands, feet, and jaw, along with soft tissue
thickening. Weight loss and heat intolerance are signs of hyperthyroidism.
9. A patient with a pituitary adenoma reports visual field defects. Which
structure is most likely compressed?
• A. Optic nerve
• B. Optic chiasm
• C. Trigeminal nerve
• D. Oculomotor nerve
Rationale: The pituitary gland sits in the sella turcica, directly below the optic
chiasm. A pituitary adenoma expanding upward compresses the optic chiasm,
causing bitemporal hemianopsia (loss of peripheral vision).
10. Which hormone increases blood glucose levels by stimulating glycogenolysis
and gluconeogenesis?
• A. Insulin
• B. Glucagon
• C. Somatostatin
• D. Amylin
Rationale: Glucagon (secreted by alpha cells of the pancreas) raises blood
glucose by promoting glycogenolysis and gluconeogenesis. Insulin lowers glucose.
Somatostatin inhibits hormone secretion, and amylin slows gastric emptying.
Thyroid & Parathyroid Disorders
11. Calcitonin is secreted by which cells of the thyroid gland?
• A. Follicular cells
