course point unit 8 Flashcards
When hypofunction of an endocrine organ is suspected, which type of diagnostic test can be administered to measure and assess target gland response?
Hormone stimulation
Neurotransmitters like catecholamines (e.g., dopamine and epinephrine) have a reaction time of:
milliseconds
Which manifestation would a nurse expect when assessing a child with insufficient growth hormone (GH) secretion?
Rank below 10% on the growth chart
The nurse is teaching a client how to collect a 24-hour urine sample for cortisol levels. The client asks why a blood sample cannot just be taken since collecting urine for 24-hours is inconvenient. How should the nurse respond?
“Because cortisol levels fluctuate, collecting a sample over time will be more accurate.”
A client experiences an increase in thyroid hormone as a result of a thyroid tumor. Which hormonal response demonstrates the negative feedback mechanism?
decreased thyroid-stimulating hormone (TSH)
The nurse is assessing a client recovering from major surgery. As part of the stress response, the nurse monitors for the physiological effects of elevations in which hormones? Select all that apply.
Epinephrine,Cortisol, Growth hormone
A health care provider is assessing a client for a potential endocrine disorder. Assessment findings identify abnormalities with emotion, pain, and body temperature. Which mechanism of endocrine control will require further laboratory/diagnostic assessment?
Hypothalamus
A nurse examines the laboratory values of a client in heart failure. Which value indicates a compensatory hormone mechanism?
Elevated atrial natriuretic hormone
A client has received an injection containing thyrotropin-releasing hormone (TRH) and is now being assessed for serum levels of thyroid-stimulating hormone (TSH). Which type of diagnostic testing is this client undergoing?
Stimulation testing
Which hormones illustrate non-vesicle-mediated synthesis? Select all that apply.
Aldosterone, Androgens, Cortisol
The nurse is discussing positive feedback mechanisms. Which example best explains this mechanism?
Increased estradiol production causes increased follicle-stimulating hormone (FSH) production.
Which structure controls the functions of the greatest number of target glands and cells?
Pituitary gland
An infant whose mother had myxedema during the pregnancy has failed to meet standards for growth and is developmentally delayed. Which hormonal imbalance is this child exhibiting?
Hypothyroidism
Which gland is often referred to as the master gland because it secretes many hormones?
Pituitary
The nurse is reviewing endocrine testing results. Which finding does the nurse identify as evidence the client is having an abnormal response to the expected hormonal feedback mechanisms?
Increased calcitonin levels in response to decreased blood calcium levels
A client receives steroids for several months to treat an inflammatory condition. Which action by the primary health care provider indicates an understanding of the negative feedback mechanism when the client no longer needs the medication?
Prescribing a tapering dose of the medication over weeks
The nurse is planning to collect a 24-hour urine sample for hormone assay. In which situation does the nurse collaborate with the health care provider to find an alternate type of testing?
Client has anuria.
Which statement describes how water-soluble peptides, such as parathyroid hormone or glucagon, exert their effect on cells?
They bind to receptors.
A middle-aged female client has been diagnosed with a thyroid condition. The nurse educates the client about the prescription and needed follow-up lab work, which will help regulate the dosage. The client asks, “Why do I not return to the clinic for weeks, since I am starting the medication tomorrow morning?” The nurse bases the answer on the knowledge that thyroid hormones:
may take days for the full effect to occur, based on the mechanism of action.
The nurse is caring for a client who received an epinephrine injection for an allergic reaction. The client asks how long epinephrine lasts in the body. Which information will the nurse include when responding to the client? Select all that apply.
Epinephrine is water soluble and is excreted in the urine.
After binding to receptors, it is quickly broken down.
A client reports multiple nonspecific concerns, and the health care provider has ordered a positron emission tomography (PET). For which is the client being evaluated?
tumors located on the endocrine glands
Which hormone is produced by the anterior pituitary gland?
Growth hormone (GH)
Which type of imaging is preferred to evaluate the bone density of a client with hyperparathyroidism?
Dual energy x-ray absorptiometry (DXA) scan
A middle-aged client has acromegaly as a result of a pituitary adenoma that was found and removed when the client was an adolescent. The health care provider suspects that the tumor has returned and has ordered a diagnostic workup. A glucose load is ordered. If the tumor has returned, the nurse would expect which result?
The growth hormone level will not be suppressed following glucose load.
Following a stroke that disrupts blood flow to the pituitary gland, a client develops signs of hypopituitarism. Which manifestations are unexpected findings?
Increased volume of dilute urine
A client experiences an increase in cortisol as a result of Cushing disease. Which hormonal responses demonstrate the negative feedback mechanism?
Decreased adrenocorticotropic hormone (ACTH)
The nurse is teaching a client how to collect a 24-hour urine sample for cortisol levels. The client asks why a blood sample cannot just be taken since collecting urine for 24-hours is inconvenient. How should the nurse respond?
“Because cortisol levels fluctuate, collecting a sample over time will be more accurate.”
A hypernatremic client is researching his condition and learns that aldosterone binds to an intracellular receptor. What do intracellular receptors generally stimulate in a cell?
Gene expression
A client with hyperthyroidism is being treated with medication that blocks the activity of thyroid-stimulating hormone. Her care team has determined that she has been overproducing TSH. This client will have lost her ability to:
have negative feedback regulation.
The nurse is assessing a client with thyrotoxicosis and the nurse is explaining how the thyroid gland is stimulated to release thyroid hormones. The nurse should describe what process?
Action of releasing hormones from hypothalamus