Nursing Elites

1. Which type of cells secrete insulin?

• A. alpha cells
• B. beta cells
• C. CD4 cells
• D. helper cells

Correct answer: B

Rationale: Beta cells are responsible for secreting insulin. Insulin is produced by beta cells in the pancreas and plays a crucial role in regulating blood sugar levels. Alpha cells secrete glucagon, not insulin (Choice A). CD4 cells are a type of immune cell that helps coordinate the immune response (Choice C). Helper cells are a type of immune cell that aids in activating other immune cells (Choice D). Therefore, the correct answer is beta cells.

2. A nurse suspects a patient is developing Bell's Palsy. The nurse wants to test the function of cranial nerve VII. Which of the following would be the most appropriate testing procedures?

• A. Test the taste sensation over the back of the tongue and activation of the facial muscles.
• B. Test the taste sensation over the front of the tongue and activation of the facial muscles.
• C. Test the sensation of the facial muscles and sensation of the back of the tongue.
• D. Test the sensation of the facial muscles and sensation of the front of the tongue.

Correct answer: B

Rationale: The facial nerve (VII) is responsible for motor function to the face and sensory function to the anterior two-thirds of the tongue. Therefore, to appropriately test the function of cranial nerve VII, the most appropriate testing procedures involve assessing the taste sensation over the front of the tongue (sensory) and activation of the facial muscles (motor). Option B, 'Test the taste sensation over the front of the tongue and activation of the facial muscles,' is the correct answer. Choices A, C, and D are incorrect because they do not involve the correct combination of sensory testing over the front of the tongue and motor activation of the facial muscles, which are key functions associated with cranial nerve VII.

3. The PN is caring for a client with diabetes insipidus. The nurse can expect the lab work to show:

• A. elevated urine osmolarity and elevated serum osmolarity.
• B. decreased urine osmolarity and decreased serum osmolarity.
• C. elevated urine osmolarity and decreased serum osmolarity.
• D. decreased urine osmolarity and elevated serum osmolarity.

Correct answer: D

Rationale: In diabetes insipidus, the pituitary releases too much antidiuretic hormone (ADH), causing the client to produce a large amount of dilute urine (decreased osmolarity) and leading to dehydration (elevated serum osmolarity). Therefore, the correct answer is decreased urine osmolarity and elevated serum osmolarity. Choice C, elevated urine osmolarity and decreased serum osmolarity, is incorrect for diabetes insipidus, as it is more characteristic of syndrome of inappropriate ADH (SIADH). Choices A and B, elevated urine osmolarity and elevated serum osmolarity, and decreased urine osmolarity and decreased serum osmolarity, respectively, are generally not seen in diabetes insipidus, as urine and serum osmolarity typically move in opposite directions in this condition.

4. The client with peripheral vascular disease is reviewing self-care measures. Which of the following statements indicates proper self-care measures?

• A. "I like to soak my feet in the hot tub every day."?
• B. "I walk to the mailbox in my bare feet."?
• C. "I stopped smoking and only use chewing tobacco."?
• D. "I have my wife examine the soles of my feet each day."?

Correct answer: D

Rationale: The correct answer is, "I have my wife examine the soles of my feet each day."? Clients with peripheral vascular disease should examine their feet daily for any signs of redness, dryness, or cuts. If the client is unable to do this themselves due to decreased sensation in their feet, a caregiver or family member should assist. Soaking feet in a hot tub should be avoided as the client may not be able to sense if the water is too hot, potentially causing burns. Walking barefoot can lead to injuries, so wearing shoes or slippers is recommended to minimize trauma. While quitting smoking is a positive step, using chewing tobacco can still constrict blood vessels, adversely affecting circulation in the extremities.

5. The nurse is caring for a client with hyperemesis gravidarum. What is the most likely electrolyte imbalance?

• A. Hypocalcemia
• B. Hypomagnesemia
• C. Hyponatremia
• D. Hypokalemia

Correct answer: D

Rationale: In hyperemesis gravidarum, where the client experiences severe nausea and vomiting, the most likely electrolyte imbalance is hypokalemia. Potassium is abundant in the stomach, and excessive vomiting leads to potassium loss. Hypocalcemia (Choice A) is not typically associated with hyperemesis gravidarum. Hypomagnesemia (Choice B) and Hyponatremia (Choice C) are less likely to occur compared to hypokalemia in this condition.

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