NCLEX-PN
Quizlet NCLEX PN 2023
1. When giving an intramuscular injection to an infant, which of the following sites is preferred?
- A. Ventrogluteal region
- B. Deltoid
- C. Vastus lateralis
- D. Dorsogluteal region
Correct answer: C
Rationale: The correct answer is the Vastus lateralis when giving an intramuscular injection to an infant. The Vastus lateralis muscle, located in the thigh, is the preferred site for infants as it has a larger muscle mass and is well-developed, making it suitable for injections. The Ventrogluteal region and Dorsogluteal region are not recommended for infants due to their smaller muscle mass and potential risk of damaging nearby structures. The Deltoid muscle is typically used for older children and adults, not infants.
2. When assessing a client with early impairment of oxygen perfusion, such as a pulmonary embolus, the nurse should expect to find restlessness and which of the following symptoms?
- A. cool, clammy skin
- B. bradycardia
- C. tachycardia
- D. eupnea
Correct answer: C
Rationale: When a client has early impairment of oxygen perfusion, such as in a pulmonary embolus, the nurse should expect to find restlessness, diaphoresis, tachycardia, and cool skin. Tachycardia is a compensatory mechanism to increase oxygen delivery to tissues. Cool, clammy skin (choice A) is more indicative of impaired oxygen perfusion compared to warm, dry skin. Bradycardia (choice B) is less likely to occur in the early stages and is more common in severe cases. Eupnea (choice D) refers to normal respirations in rate and depth, which may not be altered in early impairment of oxygen perfusion.
3. What happens if folic acid is administered to treat anemia without determining its underlying cause?
- A. Erythropoiesis is inhibited
- B. Excessive levels of folic acid might accumulate, causing toxicity
- C. The symptoms of pernicious anemia might be masked, delaying treatment
- D. Intrinsic factor is destroyed
Correct answer: C
Rationale: When folic acid is given without determining the underlying cause of anemia, the symptoms of pernicious anemia may be masked, potentially delaying the correct treatment. Folic acid alone does not protect against the central nervous system changes seen in pernicious anemia, which are related to Vitamin B12 deficiency. Folic acid and Vitamin B12 are both crucial for cell growth and division. Administering folic acid without knowing the specific type of anemia could lead to a delay in addressing the root cause. Option A is incorrect because folic acid is essential for erythropoiesis, the production of red blood cells. Option B is incorrect as excessive folic acid can cause toxicity, but it is not the primary concern in this context. Option D is incorrect because folic acid treatment for anemia does not directly impact intrinsic factor, which is related to Vitamin B12 absorption.
4. A patient has been diagnosed with diabetes mellitus. Which of the following is not a clinical sign of diabetes mellitus?
- A. Polyphagia
- B. Polyuria
- C. Metabolic acidosis
- D. Lower extremity edema
Correct answer: D
Rationale: Polyphagia, polyuria, and metabolic acidosis are common clinical signs of diabetes mellitus. Polyphagia refers to excessive hunger, polyuria is excessive urination, and metabolic acidosis can occur due to poorly controlled diabetes. Lower extremity edema, on the other hand, is not a typical clinical sign of diabetes mellitus. Edema in the lower extremities is more commonly associated with conditions like heart failure or kidney disease rather than diabetes mellitus.
5. A healthcare professional is reviewing a patient's medical record. The record indicates the patient has limited shoulder flexion on the left. Which plane of movement is limited?
- A. Horizontal
- B. Sagittal
- C. Frontal
- D. Vertical
Correct answer: B
Rationale: The correct answer is 'Sagittal.' The sagittal plane divides the body into left and right halves, and movements in this plane involve flexion and extension. In this case, limited shoulder flexion on the left indicates a restriction in the forward and backward movement of the arm, which occurs in the sagittal plane. Choice A, 'Horizontal,' is incorrect as it refers to movements parallel to the ground. Choice C, 'Frontal,' is incorrect as it involves side-to-side movements. Choice D, 'Vertical,' is incorrect as it typically refers to up and down movements.
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