WGU D027 OBJECTIVE ASSESSMENT
FINAL EXAM 2025/2026 COMPLETE
QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS!! <LATEST VERSION
1. What causes Addison's disease?
- ANSWER-: Decreased glucocorticoid (due to autoimmune destruction of adrenal
cortex).
RATIONALE: Addison's disease results from primary adrenal insufficiency, where the
adrenal cortex is damaged (often autoimmunity), leading to insufficient cortisol and
aldosterone production. This causes symptoms like fatigue, weight loss, and
hypotension. Early recognition is critical for hormone replacement therapy.
2. What causes Cushing's syndrome?
- ANSWER-: Excess cortisol.
RATIONALE: Cushing's is characterized by hypercortisolism from pituitary adenomas
(Cushing's disease), adrenal tumors, or exogenous steroids. It leads to moon face,
buffalo hump, and hypertension. Diagnosis via dexamethasone suppression test;
treatment may involve surgery or medication.
3. What causes Graves' disease?
- ANSWER-: Autoimmune hyperthyroidism (TSH receptor antibodies).
RATIONALE: Graves' is the most common cause of hyperthyroidism, where antibodies
stimulate the thyroid to overproduce T3/T4, causing exophthalmos, goiter, and
tachycardia. Treatment includes antithyroid drugs (e.g., methimazole), radioiodine, or
surgery.
4. Which type of drug is spironolactone?
- ANSWER-: Potassium-sparing diuretic.
RATIONALE: Spironolactone is an aldosterone antagonist used in heart failure,
hypertension, and edema. It blocks sodium reabsorption in the distal tubule, sparing
, potassium (risk of hyperkalemia). Monitor electrolytes; contraindicated in renal
impairment.
5. Which type of insulin is the most painful during injection?
- ANSWER-: Lantus (long-acting).
RATIONALE: Lantus (glargine) is acidic (pH 4), causing stinging upon injection
compared to neutral insulins like regular or NPH. It's basal insulin for steady glucose
control; rotate sites to minimize pain and lipohypertrophy.
6. Why test glycosylated hemoglobin (HgbA1c)?
- ANSWER-: Most reliable assessment of blood sugar over the past 3 months.
RATIONALE: HgbA1c reflects average glucose (4-12 weeks) by measuring glycated
hemoglobin, aiding diabetes diagnosis (≥6.5%) and monitoring (target <7%). It's
unaffected by daily fluctuations, unlike fasting glucose.
7. Which hospitalized patient is at highest risk for developing delirium?
- ANSWER-: An elderly male with COVID-19.
RATIONALE: Delirium risk factors include age >65, infection (e.g., COVID-19 causing
hypoxia/inflammation), and hospitalization stressors. Elderly males have higher
vulnerability due to comorbidities; screen with CAM tool and prevent with
orientation/environmental cues.
8. For chronic migraines, which medication prevents frequency?
- ANSWER-: Verapamil (calcium channel blocker).
RATIONALE: Verapamil reduces migraine frequency by stabilizing vascular tone and
neuronal excitability. Used prophylactically; alternatives include beta-blockers
(propranolol) or topiramate. Monitor for bradycardia; not for acute attacks.
9. Which antihypertensive should be avoided in a patient with emphysema?
- ANSWER-: Beta-blockers (e.g., propranolol).
RATIONALE: Non-selective beta-blockers block β2 receptors in lungs, causing
bronchoconstriction and exacerbating COPD/emphysema. Prefer ACE inhibitors or
calcium channel blockers; cardioselective beta-blockers (e.g., metoprolol) may be safer
in low doses.
10. What organ does cystic fibrosis primarily affect?
- ANSWER-: Pancreas (causing secretions into lungs).
FINAL EXAM 2025/2026 COMPLETE
QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS!! <LATEST VERSION
1. What causes Addison's disease?
- ANSWER-: Decreased glucocorticoid (due to autoimmune destruction of adrenal
cortex).
RATIONALE: Addison's disease results from primary adrenal insufficiency, where the
adrenal cortex is damaged (often autoimmunity), leading to insufficient cortisol and
aldosterone production. This causes symptoms like fatigue, weight loss, and
hypotension. Early recognition is critical for hormone replacement therapy.
2. What causes Cushing's syndrome?
- ANSWER-: Excess cortisol.
RATIONALE: Cushing's is characterized by hypercortisolism from pituitary adenomas
(Cushing's disease), adrenal tumors, or exogenous steroids. It leads to moon face,
buffalo hump, and hypertension. Diagnosis via dexamethasone suppression test;
treatment may involve surgery or medication.
3. What causes Graves' disease?
- ANSWER-: Autoimmune hyperthyroidism (TSH receptor antibodies).
RATIONALE: Graves' is the most common cause of hyperthyroidism, where antibodies
stimulate the thyroid to overproduce T3/T4, causing exophthalmos, goiter, and
tachycardia. Treatment includes antithyroid drugs (e.g., methimazole), radioiodine, or
surgery.
4. Which type of drug is spironolactone?
- ANSWER-: Potassium-sparing diuretic.
RATIONALE: Spironolactone is an aldosterone antagonist used in heart failure,
hypertension, and edema. It blocks sodium reabsorption in the distal tubule, sparing
, potassium (risk of hyperkalemia). Monitor electrolytes; contraindicated in renal
impairment.
5. Which type of insulin is the most painful during injection?
- ANSWER-: Lantus (long-acting).
RATIONALE: Lantus (glargine) is acidic (pH 4), causing stinging upon injection
compared to neutral insulins like regular or NPH. It's basal insulin for steady glucose
control; rotate sites to minimize pain and lipohypertrophy.
6. Why test glycosylated hemoglobin (HgbA1c)?
- ANSWER-: Most reliable assessment of blood sugar over the past 3 months.
RATIONALE: HgbA1c reflects average glucose (4-12 weeks) by measuring glycated
hemoglobin, aiding diabetes diagnosis (≥6.5%) and monitoring (target <7%). It's
unaffected by daily fluctuations, unlike fasting glucose.
7. Which hospitalized patient is at highest risk for developing delirium?
- ANSWER-: An elderly male with COVID-19.
RATIONALE: Delirium risk factors include age >65, infection (e.g., COVID-19 causing
hypoxia/inflammation), and hospitalization stressors. Elderly males have higher
vulnerability due to comorbidities; screen with CAM tool and prevent with
orientation/environmental cues.
8. For chronic migraines, which medication prevents frequency?
- ANSWER-: Verapamil (calcium channel blocker).
RATIONALE: Verapamil reduces migraine frequency by stabilizing vascular tone and
neuronal excitability. Used prophylactically; alternatives include beta-blockers
(propranolol) or topiramate. Monitor for bradycardia; not for acute attacks.
9. Which antihypertensive should be avoided in a patient with emphysema?
- ANSWER-: Beta-blockers (e.g., propranolol).
RATIONALE: Non-selective beta-blockers block β2 receptors in lungs, causing
bronchoconstriction and exacerbating COPD/emphysema. Prefer ACE inhibitors or
calcium channel blockers; cardioselective beta-blockers (e.g., metoprolol) may be safer
in low doses.
10. What organ does cystic fibrosis primarily affect?
- ANSWER-: Pancreas (causing secretions into lungs).
