what drives respiration in a patient with advanced chronic respiratory failure
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Nursing Elites

NCLEX-RN

Exam Cram NCLEX RN Practice Questions

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

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.

2. The nurse is caring for an infant with cryptorchidism. The nurse anticipates that the most likely diagnostic study to be prescribed would be the one that assesses which item?

Correct answer: C

Rationale: Cryptorchidism, also known as undescended testes, may be caused by hormonal deficiency, intrinsic testicular abnormality, or a structural problem. Diagnostic studies for cryptorchidism typically involve assessing urinary function because the kidneys and testes originate from the same embryonic tissue. The Babinski reflex is a test for neurological function and is not relevant to evaluating cryptorchidism. DNA synthesis and chromosomal analysis are not commonly used diagnostic tests for cryptorchidism, as they are unrelated to the disorder's etiology or presentation.

3. A client was recently diagnosed with diverticulosis. What types of foods should the nurse recommend for this client?

Correct answer: A

Rationale: Diverticulosis is a condition characterized by small protrusions in the intestinal tract. To manage diverticulosis, a high-fiber diet is recommended. Foods rich in fiber help prevent constipation and reduce the risk of inflammation in the intestines. Whole grain cereals are an excellent source of fiber and can aid in maintaining bowel regularity. Eggs, cottage cheese, and fish are not high-fiber foods and may not provide the necessary dietary support for a client with diverticulosis. While protein-rich foods like eggs and fish are beneficial for overall health, they are not the primary recommendation for managing diverticulosis.

4. The mother of a child who had a cleft palate repair 4 days ago is receiving home care instructions. Which statement by the mother indicates the need for further instruction?

Correct answer: B

Rationale: The correct answer is ''I should avoid using straws for drinking.'' After a cleft palate repair, the child should avoid straws, pacifiers, spoons, and fingers near the mouth for 7 to 10 days to prevent injury to the surgical site. Allowing the child to use a straw can create negative pressure in the mouth, potentially disrupting the healing process. The other options are appropriate postoperative instructions for a child who had a cleft palate repair and do not pose a risk to the surgical site.

5. Parents of a 6-month-old breastfed baby ask the nurse about increasing the baby's diet. Which of the following should be added first?

Correct answer: A

Rationale: The correct answer is 'Cereal.' The guidelines of the American Academy of Pediatrics recommend introducing one new food at a time, starting with strained cereal. Cereal is often recommended as a first solid food for infants due to its soft texture and iron-fortified properties, which are important for the baby's development. Eggs and meat are common allergenic foods and are usually introduced later. Juice is not recommended for infants under 1 year old due to its high sugar content and lack of nutritional value compared to whole fruits.

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