The mother of 6-year-old male and female fraternal twins has brought her son to see a pediatrician because he is nearly 4 inches shorter than his sister
Which of the following phenomena would the physician most likely suspect as contributing factor to the boy's short stature?
A)
Genetic short stature
B)
Lack of IGF receptors in epiphyseal long bones
C)
A shortage of hypothalamic GHRH production
D)
Excess insulin production resulting in chronically low blood glucose levels
Ans:
C
Feedback:
Inadequate levels of hypothalamic GHRH will result in adequate production but inadequate release of GH by the pituitary. Genetic short stature is less likely given the disparity between his height and his twin's, and a shortage of IGF receptors is not a noted pathology. While poorly controlled diabetes can contribute to short stature, excess insulin production is not a likely factor.
You might also like to view...
The nurse is providing care to a client diagnosed with bipolar disorder. The client's family asks the nurse what this is. Which response by the nurse is appropriate?
A) "Bipolar disorder is a type of depression that includes attention deficit disorder symptoms." B) "Bipolar disorder means there are cycles of depression as well as hyperactivity, or mania." C) "Bipolar disorder just means that the mood alternates with the seasons, and it becomes worse in the winter." D) "Bipolar disorder is just another type of depression, except depression occurs in cycles."
The nurse is preparing to collect a specimen from a client for culture. Which of the following should the nurse keep in mind when collecting this specimen?
a. The client should be fasting. b. The specimen should be collected early in the morning. c. The specimen should be collected before antibiotics are started. d. The client should drink a high volume of fluids before the specimen is obtained.
Managed care was a methodology adopted in the 1980s and 1990s. It is a system designed to deliver through a specific network of providers and to reduce costs. However, the cost saving was short-lived because:
1. Consumer groups did not endorse the plans. 2. Clients had been used to access to providers of their choice and unlimited service. 3. Medicare and Medicaid took over these plans, making them unnecessary. 4. The system lacked proper payment to physicians and many practitioners went out of business.
A new nurse asks the mentor, "How can I be sure I'm developing a therapeutic environ-ment for my unit?" The mentor uses as a basis for the response the fact that a therapeutic milieu is characterized by:
a. Rigid adherence to timelines and unit routine b. Relaxation of boundaries when doing so is accepted by all c. The focus of the staff is directed to the most critically disturbed patients d. Specific patient-centered goals are established mutually by patient and staff