Nursing Elites

1. A patient asks a nurse administering blood how long red blood cells live in the body. What is the correct response?

• A. The life span of RBC is 45 days
• B. The life span of RBC is 60 days
• C. The life span of RBC is 90 days
• D. The life span of RBC is 120 days

Correct answer: D

Rationale: The correct answer is that red blood cells have a lifespan of 120 days in the body. This allows for efficient oxygen transport throughout the circulatory system. Choices A, B, and C are incorrect because the lifespan of red blood cells is actually 120 days. Understanding the lifespan of red blood cells is crucial in assessing various conditions related to blood cell production and turnover.

2. Which of the following conditions is a contraindication for performing a diagnostic peritoneal lavage?

• A. A client who is 9 weeks pregnant
• B. A client with a femur fracture
• C. A morbidly obese client
• D. A client with hypertension

Correct answer: C

Rationale: Diagnostic peritoneal lavage is contraindicated in morbidly obese clients due to several reasons. Excess body fat in morbidly obese individuals makes it challenging to locate essential landmarks required for the procedure. Additionally, the equipment utilized for the lavage may not be sized appropriately to accommodate an obese individual. Furthermore, morbid obesity places undue stress on the cardiovascular and respiratory systems, increasing the risk of complications when administering anesthetic agents during the procedure. Therefore, performing a diagnostic peritoneal lavage on a morbidly obese client is not recommended. Choice A, a client who is 9 weeks pregnant, is not a contraindication for diagnostic peritoneal lavage. Pregnancy status alone does not preclude the procedure unless there are specific maternal or fetal concerns. Choice B, a client with a femur fracture, is not a contraindication for diagnostic peritoneal lavage. The presence of a femur fracture does not typically affect the ability to perform this diagnostic procedure. Choice D, a client with hypertension, is not a contraindication for diagnostic peritoneal lavage. Hypertension, while a consideration for anesthesia and surgery, does not directly impact the feasibility of performing a diagnostic peritoneal lavage.

3. A client using an intraaural hearing aid experiences whistling after placement. What is the nurse's next action?

• A. Try to reposition the hearing aid
• B. Change the batteries
• C. Remove the device and have it cleaned
• D. Notify the physician that the hearing aid is not working

Correct answer: A

Rationale: An intraaural hearing aid, also known as an in-the-ear hearing aid, is placed in the ear canal. Whistling after placement indicates improper positioning of the device. The correct action for the nurse is to try repositioning the hearing aid to eliminate the whistling. Changing the batteries is not necessary for addressing whistling. Removing the device to clean it is not the immediate action needed for whistling. Notifying the physician is premature without attempting to reposition the hearing aid first.

4. The parent of an infant diagnosed with gastroesophageal reflux disease is receiving feeding instructions from the nurse. Which instruction should the nurse give to the parent to assist in reducing the episodes of emesis?

• A. Provide smaller, more frequent feedings.
• B. Burp the infant frequently during feedings.
• C. Thin the feedings by adding water to the formula.
• D. Thicken the feedings by adding rice cereal to the formula.

Correct answer: D

Rationale: Gastroesophageal reflux disease involves the backward flow of gastric contents into the esophagus due to sphincter issues. To reduce episodes of emesis, it is recommended to thicken feedings by adding rice cereal to the formula. This helps to weigh down the contents in the stomach, making regurgitation less likely. Providing smaller, more frequent feedings and burping the infant frequently are beneficial strategies for gastroesophageal reflux. However, in this case, thickening the feedings is the most appropriate intervention. Thinning the feedings by adding water to the formula is not recommended as it can decrease the caloric density of the formula and may not help in reducing reflux.

5. What drives respiration in a patient with advanced chronic respiratory failure?

• A. Hypoxemia
• B. Hypocapnia
• C. Hypercapnia
• D. None of the above

Correct answer: A

Rationale: In patients with advanced chronic respiratory failure, such as those with chronic obstructive pulmonary disease (COPD), the respiratory drive shifts from being primarily stimulated by high levels of carbon dioxide (hypercapnia) to being driven by low oxygen levels (hypoxemia). This shift is due to the body's adaptation to chronic respiratory acidosis and hypoxemia. As a result, hypoxemia becomes the primary stimulus for respiration in these patients. Hypocapnia, a low level of carbon dioxide, is not a common driver of respiration in patients with advanced chronic respiratory failure. Therefore, the correct answer is hypoxemia.

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