ATI RN
Nursing Process NCLEX Questions Questions
Question 1 of 5
The lungs regulate acid-base balance b₃y⁻ all of the following except:
Correct Answer: C
Rationale: The correct answer is C: Slowing ventilation. The lungs regulate acid-base balance by controlling carbon dioxide levels through ventilation. Increasing ventilation helps expel excess carbon dioxide, thus regulating pH. Slowing ventilation would lead to CO2 buildup and an imbalance in acid-base levels. Excreting HCO3- into the blood (choice A) helps maintain pH, while increasing ventilation (choice D) aids in removing excess CO2. Therefore, slowing ventilation is the exception as it would disrupt the acid-base balance by not effectively regulating carbon dioxide levels.
Question 2 of 5
Which of the following intravenous solutions is hypotonic?
Correct Answer: C
Rationale: The correct answer is C: 0.45% saline. This solution is hypotonic because it has a lower osmolarity compared to the intracellular fluid. It contains fewer solutes than the cells, causing water to move into the cells by osmosis, potentially causing them to swell. Normal saline (A) and Ringer's lactate (B) are isotonic solutions, meaning they have a similar osmolarity to the intracellular fluid and do not cause significant water shifts. 5% dextrose in normal saline (D) is a hypertonic solution, containing more solutes than the cells, leading to water movement out of the cells.
Question 3 of 5
When preparing a site for venipunctures with alcohol, how long must the area be cleaned?
Correct Answer: D
Rationale: The correct answer is D: 60 seconds. This is because the area must be cleaned for at least 60 seconds to effectively disinfect the skin and reduce the risk of infection during venipuncture. Cleaning for shorter durations (5, 10, or 30 seconds) may not be sufficient to achieve proper disinfection. Thoroughly cleaning the area for a full minute ensures that the alcohol has enough time to kill bacteria and pathogens on the skin, making it safer for the venipuncture procedure. Shorter cleaning times may leave pathogens behind, increasing the risk of contamination and infection.
Question 4 of 5
Which of the ff conditions is evident by persistent hoarseness?
Correct Answer: C
Rationale: The correct answer is C: Laryngeal cancer. Persistent hoarseness is a common symptom of laryngeal cancer due to vocal cord involvement. Laryngeal cancer causes changes in voice quality over time. Bacterial infection (A) usually presents with acute symptoms and resolves with treatment. Aphonia (B) is the complete loss of voice, not persistent hoarseness. Peritonsillar abscess (D) causes sore throat and difficulty swallowing, but not persistent hoarseness.
Question 5 of 5
Which of the ff does the examiner note when auscultating the lungs of a client with pleural effusion?
Correct Answer: D
Rationale: The correct answer is D because pleural effusion is the accumulation of fluid in the pleural space. When auscultating the lungs of a client with pleural effusion, the examiner would note decreased or absent breath sounds over the area where the fluid has accumulated. This is due to the fluid blocking the transmission of sound through the lungs. Pronounced breath sounds (choice A) would not be present due to the fluid obstructing the normal sound transmission. Expiratory wheezes (choice B) are associated with airway obstruction, not fluid accumulation. Friction rub (choice C) is a dry, grating sound heard with inflammation of the pleura, not specifically related to pleural effusion.