NCLEX NCLEX-PN
NCLEX PN 2023 Quizlet
1. What do the following ABG values indicate: pH 7.38, PO2 78 mmHg, PCO2 36 mmHg, and HCO3 24 mEq/L?
- A. metabolic alkalosis
- B. homeostasis
- C. respiratory acidosis
- D. respiratory alkalosis
Correct answer: homeostasis
Rationale: The correct answer is 'homeostasis.' These ABG values fall within the normal range, indicating a state of balance and homeostasis. The pH is within the normal range (7.35-7.45), the PCO2 is normal (35-45 mmHg), and the HCO3 level is also normal (22-26 mEq/L). Choice A, 'metabolic alkalosis,' is incorrect because the pH, PCO2, and HCO3 levels are not indicative of metabolic alkalosis. Choice C, 'respiratory acidosis,' is incorrect as the pH and PCO2 values are not elevated. Choice D, 'respiratory alkalosis,' is incorrect as the pH and PCO2 levels are not decreased. Therefore, the ABG values provided do not correspond to any acid-base disturbance, confirming that the patient is in a state of homeostasis.
2. What is the drug of choice for herpes simplex virus 1, herpes simplex virus 2, and varicella-zoster virus?
- A. HIV.
- B. HSV 1, HSV 2, and VZV.
- C. CMV
- D. Influenza A viruses.
Correct answer: HSV 1, HSV 2, and VZV.
Rationale: Acyclovir (Zovirax) is the drug of choice for herpes simplex virus 1 (HSV-1), herpes simplex virus 2 (HSV-2), and varicella-zoster virus (VZV) infections. It works by inhibiting viral DNA replication. Acyclovir is excreted unchanged in the urine, so caution is needed in renal impairment. Choice A, HIV, is incorrect as acyclovir is not the drug of choice for HIV. Choice C, CMV, is incorrect as acyclovir is not the preferred treatment for cytomegalovirus (CMV) infections. Choice D, Influenza A viruses, is incorrect as acyclovir is not used to treat influenza viruses.
3. What are the major electrolytes in the extracellular fluid?
- A. potassium and chloride
- B. potassium and phosphate
- C. sodium and chloride
- D. sodium and phosphate
Correct answer: sodium and chloride
Rationale: The correct answer is sodium and chloride. These two electrolytes are the major components of extracellular fluid. Potassium and phosphate (Choice B) are not the major electrolytes in the extracellular fluid. Potassium is primarily an intracellular ion, and phosphate is more abundant in the intracellular fluid and bones. Sodium and phosphate (Choice D) are also not the major electrolytes in the extracellular fluid. Chloride plays a crucial role in maintaining electrolyte balance and is predominantly found in extracellular fluid alongside sodium.
4. A nurse palpates a client’s radial pulse, noting the rate, rhythm, and force, and concludes that the client’s pulse is normal. Which notation would the nurse make in the client’s record to document the force of the client’s pulse?
- A. 4+
- B. 3+
- C. 2+
- D. 1+
Correct answer: C
Rationale: When assessing a pulse, the nurse should note the rhythm, amplitude, and symmetry of pulses and should compare peripheral pulses on the two sides for rate, rhythm, and quality. A 4-point scale may be used to assess the force (amplitude) of the pulse: 4+ for a bounding pulse, 3+ for an increased pulse, 2+ for a normal pulse, and 1+ for a weak pulse. In this case, the nurse would grade the client’s pulse as 2+ based on the description of a normal pulse. Therefore, the correct notation for the force of the client’s pulse is '2+' as it indicates a normal pulse. Choices A, B, and D are incorrect as they represent different levels of pulse force that do not align with the description given in the scenario.
5. Assessment of the client with an arteriovenous fistula for hemodialysis should include:
- A. inspection for visible pulsations.
- B. palpation of thrill.
- C. percussion for dullness.
- D. auscultation of blood pressure.
Correct answer: palpation of thrill.
Rationale: The correct answer is to palpate for a thrill. A thrill should be present in a functioning arteriovenous fistula (AVF) and indicates good blood flow. The client should be educated to check for this sensation daily at home to monitor the AVF's patency. Visible pulsations are not typically observed in an AVF. Percussion for dullness does not provide relevant information about the AVF. Auscultation of blood pressure is not a standard practice in assessing an AVF. However, auscultation of the AVF for a bruit, a sound indicating turbulent blood flow, is crucial in evaluating the AVF's patency.
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