A nurse is assessing a client with Cushing's syndrome. The nurse is aware that an exogenous cause of Cushing's syndrome is which of the following?
Insufficient insulin production
Long term use of glucocorticoids
Adrenal insufficiency
Overproduction of growth hormones
The Correct Answer is B
A. Insufficient insulin production is related to diabetes mellitus, not Cushing's syndrome.
B. Long-term use of glucocorticoids is a well-known exogenous cause of Cushing's syndrome, as it leads to excess cortisol in the body.
C. Adrenal insufficiency refers to a deficiency of adrenal hormones and would not cause Cushing's syndrome, which is characterized by excess hormones.
D. Overproduction of growth hormones is associated with acromegaly or gigantism, not Cushing's syndrome, which primarily involves excess cortisol.
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Correct Answer is D
Explanation
A. Keeping the room brightly lit can be overstimulating and may increase ICP; therefore, a calm, dimly lit environment is preferable.
B. Encouraging coughing and deep breathing exercises could increase ICP and should be avoided unless specifically indicated.
C. Placing the client in a supine position is not recommended for clients with increased ICP; they should typically be positioned with the head elevated to promote venous drainage.
D. Implementing seizure precautions is critical as head injuries can lead to seizures, and ensuring the client's safety is a priority.
Correct Answer is A
Explanation
A. Miotic medications work by constricting the pupil, which opens the trabecular meshwork and facilitates the drainage of aqueous humor, thus lowering intraocular pressure in clients with glaucoma.
B. Miotics do not dilate the pupil; they constrict it. Dilation would actually increase intraocular pressure, which is not therapeutic in glaucoma.
C. While these medications do affect eye muscles, they do not specifically prevent blurred vision; their primary effect is on eye pressure.
D. Miotics do not block nerve responses; they work by direct action on the eye muscles to promote fluid drainage and reduce pressure.