NCLEX-RN
Health Promotion and Maintenance NCLEX RN Questions Questions
Extract:
Question 1 of 5
A client is having blood tests and has an elevated lymphocyte level. Based on knowledge of cellular components, what does the nurse know about these cells?
Correct Answer: C
Rationale: Lymphocytes are a type of white blood cells that play a crucial role in supporting the body's immune system. They are responsible for producing substances that protect the body against infections and foreign substances that could potentially harm the client. Lymphocytes consist of two main types: T cells, which are produced in the thymus, and B cells, which are produced in the lymphatic tissue.
Choice A is incorrect because histamine is mainly associated with basophils and mast cells, not lymphocytes.
Choice B is incorrect as phagocytosis is a function of other white blood cells such as neutrophils and macrophages.
Choice D is also incorrect as carrying hemoglobin and oxygen is a function of red blood cells, not lymphocytes.
Question 2 of 5
A client with asthma is being admitted for breathing difficulties. His arterial blood gas results are pH 7.26, PCO2 49, PaO2 90, and HCO3- 21. Which of the following best describes this condition?
Correct Answer: A
Rationale: In this case, the client's arterial blood gas results show a pH of 7.26 and a PCO2 of 49, both of which are abnormal. A pH below the normal range of 7.35-7.45 indicates acidosis. The elevated PCO2 of 49 mmHg suggests respiratory acidosis as the primary issue. The normal range for PCO2 is 35-45 mmHg, so a value of 49 indicates the retention of excess CO2, leading to acidosis. The low HCO3- level of 21 also supports the presence of metabolic acidosis; however, the primary abnormality is respiratory, making this an uncompensated respiratory acidosis.
Therefore, the correct answer is 'Uncompensated respiratory acidosis.'
Choice B, 'Compensated respiratory alkalosis,' is incorrect because the client's pH is acidic, not alkalotic. Additionally, there is no compensation occurring for the primary respiratory acidosis indicated by the elevated PCO2.
Choice C, 'Uncompensated metabolic acidosis,' is incorrect because while the HCO3- level is low, the primary issue indicated by the elevated PCO2 is respiratory acidosis.
Choice D, 'Compensated metabolic alkalosis,' is incorrect since the arterial blood gas results do not support a metabolic alkalosis. The low HCO3- level would typically be seen in metabolic acidosis, but in this case, the primary issue is respiratory acidosis.
Question 3 of 5
The nurse is providing teaching to a client newly diagnosed with hypertension. The nurse knows that the client understands the teaching when the client selects which menu option?
Correct Answer: B
Rationale: Baked chicken and fresh green beans are low-sodium, suitable for hypertension. Other options are high in sodium.
Question 4 of 5
A client diagnosed with anxiety disorder is prescribed buspirone orally. When the client reports that it is difficult to swallow the tablets, the nurse provides which instruction to promote compliance?
Correct Answer: A
Rationale: Buspirone tablets may be crushed and administered without regard to meals, making this the most effective instruction to promote compliance for a client who finds swallowing difficult. Mixing the tablet uncrushed in applesauce does not address the swallowing issue. Buspirone is not available in liquid form, and calling the primary health care provider for a medication change is premature before trying this intervention.
Question 5 of 5
While caring for a client in labor, a nurse attaches an electronic fetal monitor to the client's abdomen to assess the baby's heart rate. The nurse observes that the baby's heart rate slows down during each contraction and does not return to normal limits until after the contraction is complete. What type of fetal heart rate change does this pattern describe?
Correct Answer: B
Rationale: Late decelerations are characterized by the baby's heart rate declining in utero during contractions. The heart rate drops below baseline and stays low until after the contraction ends. Late decelerations are concerning as they indicate uteroplacental insufficiency, which can compromise fetal oxygenation. This pattern is a non-reassuring sign and requires immediate intervention. Variable decelerations are typically abrupt decreases in heart rate, often associated with cord compression. Early decelerations, on the other hand, mirror the contractions and are considered benign, resulting from fetal head compression. Accelerations are reassuring signs of fetal well-being, indicating a responsive and healthy fetal nervous system.