NURS 6501: MIDTERM EXAM: Please contact Your Favorite Professor for help with   NURS 6501: Midterm Exam or any other assignment. Email: professorrobertphd@gmail.com   Which of the following is NOT typically caused by a large pituitary tumor? Group of answer choices

• Bitemporal hemianopsia
• Increased red blood cell production
• Panhypopituitarism
• Seizures

  The correct answer is Increased red blood cell production. Explanation: A large pituitary tumor can lead to several different effects due to its location at the base of the brain, near the optic chiasm and the hypothalamus. Here's how the options break down:

1. Bitemporal hemianopsia: A large pituitary tumor can compress the optic chiasm, which is where the optic nerves cross. This compression results in bitemporal hemianopsia, which is the loss of vision in the outer (temporal) fields of both eyes.
2. Increased red blood cell production: This is NOT typically caused by a large pituitary tumor. Red blood cell production is regulated by erythropoietin, which is primarily produced by the kidneys, not the pituitary. While a pituitary tumor may affect hormone production in general, erythropoiesis (red blood cell production) is not directly influenced by the pituitary in this manner.
3. Panhypopituitarism: A large pituitary tumor can lead to panhypopituitarism, which is a condition where there is decreased or absent secretion of all pituitary hormones. This can result from the tumor compressing normal pituitary tissue and disrupting its function.
4. Seizures: Large pituitary tumors can also cause seizures, particularly if they cause pressure on adjacent brain structures or lead to a build-up of pressure within the brain.

Summary:

• Increased red blood cell production is not typically caused by a large pituitary tumor.
• The other symptoms, including bitemporal hemianopsia, panhypopituitarism, and seizures, are more commonly seen with large pituitary tumors.