NU 155 Exam 3I (2026) PDF | Galen College of Nursing

NUR 155 Exam 2 Study Guide
y2 y2 y2 y2 y2




Nursestar1Stuvia
y2 y2




THIS DOCUMENT CONTAIN:
y2 y2




Questions And Answers y2 y2




Verified Explanations
y2




Verified Revised Full Exam
y2 y2 y2




100% Guarantee Pass
y2 y2

,NUR 155 Exam 2 y2 y2 y2 y2




1. A 75-year-old patient asks the nurse why they seem to have more difficulty controlling
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


their blood sugar than when they were younger. Which age-related change best explains
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


this?
y2




a) The pituitary gland produces too much GH.
y2 y2 y2 y2 y2 y2 y2




b) Metabolism increases significantly after age 70.
y2 y2 y2 y2 y2 y2




c) Tissues become more resistant to insulin.
y2 y2 y2 y2 y2 y2




d) ADH levels decrease, causing fluid loss.
y2 y2 y2 y2 y2 y2




ANS: c) Tissues become more resistant to insulin.
y2 y2 y2 y2 y2 y2 y2




Explanation: As noted in your study guide, BGL (Blood Glucose Levels) rise with age. This
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


is primarily due to increased insulin resistance, meaning the body's cells don't respond
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


as effectively to insulin, and the pancreas may not release insulin as quickly. This leads
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


to higher blood sugar levels.
y2 y2 y2 y2 y2




2. Which of the following hormones is expected to REMAIN at a consistent level
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


throughout the aging process?
y2 y2 y2 y2




a) Follicle-stimulating hormone (FSH)
y2 y2 y2




b) Thyroid hormone (T3/T4)
y2 y2 y2




c) Growth hormone (GH)
y2 y2 y2




d) Antidiuretic hormone (ADH)
y2 y2 y2




ANS: b) Thyroid hormone (T3/T4)
y2 y2 y2 y2




Explanation: Your notes specify that while many hormones decrease (GH) or increase
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


(FSH, LH, ADH), Cortisol, Insulin, and Thyroid hormones typically remain unchanged with
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


age.
y2

,3. The nurse is educating a patient scheduled for a thyroid scan. Which patient statement
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


indicates a need for further teaching?
y2 y2 y2 y2 y2 y2




a) "I will need to collect my urine for 24 hours after the scan."
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2




b) "I must remain very still during the 20-minute procedure."
y2 y2 y2 y2 y2 y2 y2 y2 y2




c) "I should avoid eating shellfish and using iodized salt for several weeks before the
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


test."
y2




d) "I can take my usual multivitamin that contains iodine the day before the test."
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2




ANS: d) "I can take my usual multivitamin that contains iodine the day before the test."
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2




Explanation: A thyroid scan requires the patient to avoid iodine before the test because it
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


takes about 6 weeks to leave the body. Iodine from a multivitamin would saturate the
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


thyroid and prevent the uptake of the radioactive tracer, making the scan invalid.
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2




4. A patient's thyroid scan reveals a "cold spot." The nurse understands this finding
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


indicates:
y2




a) An area of the thyroid that is overworking.
y2 y2 y2 y2 y2 y2 y2 y2




b) The presence of Graves' disease.
y2 y2 y2 y2 y2




c) An area of the thyroid that is underactive or non-functioning.
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2




d) A normal finding in an aging thyroid.
y2 y2 y2 y2 y2 y2 y2




ANS: c) An area of the thyroid that is underactive or non-functioning.
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2




Explanation: On a thyroid scan, a "cold spot" means that area did not absorb the
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


radioactive iodine. This indicates hypoactivity (low function) and raises concern for cysts
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


or cancer. A "hot spot" indicates hyperactivity.
y2 y2 y2 y2 y2 y2 y2

, 5. A patient presents with an enlarged neck, difficulty swallowing, and difficulty breathing.
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


The nurse suspects which condition?
y2 y2 y2 y2 y2




a) Hyperthyroidism
y2




b) Goiter
y2




c) Thyroid storm
y2 y2




d) Exophthalmos
y2




ANS: b) Goiter
y2 y2




Explanation: A goiter is an enlarged thyroid gland. As it grows, it can press against the
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


esophagus, causing difficulty swallowing (dysphagia) , and against the trachea, causing
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


difficulty breathing.
y2 y2




6. The most common cause of hyperthyroidism, which is an autoimmune disorder, is:
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2




a) Excessive doses of levothyroxine
y2 y2 y2 y2




b) A pituitary tumor
y2 y2 y2




c) Iodine deficiency
y2 y2




d) Graves' disease
y2 y2




ANS: d) Graves' disease
y2 y2 y2




Explanation: Your notes clearly state that Graves' disease is the most common type of
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2


hyperthyroidism and that it is an autoimmune disorder.
y2 y2 y2 y2 y2 y2 y2 y2




7. A patient with untreated hyperthyroidism is likely to exhibit which set of symptoms?
y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2 y2




a) Weight gain, bradycardia, and cold intolerance
y2 y2 y2 y2 y2 y2




b) Diarrhea, tachycardia, and weight loss
y2 y2 y2 y2 y2