HESI LPN
PN Exit Exam 2023 Quizlet
1. A client post-thyroidectomy is being monitored for signs of hypocalcemia. Which of the following symptoms should the nurse be most concerned about?
- A. Tingling in the hands and around the mouth.
- B. Nausea and vomiting.
- C. Constipation.
- D. Bradycardia.
Correct answer: A
Rationale: The correct answer is A: Tingling in the hands and around the mouth. This symptom is a classic sign of hypocalcemia, which can occur after thyroidectomy if the parathyroid glands were inadvertently damaged during surgery. Nausea and vomiting (Choice B) are not specific to hypocalcemia. Constipation (Choice C) is not a typical symptom of hypocalcemia. Bradycardia (Choice D) is more commonly associated with hypothyroidism rather than hypocalcemia.
2. According to the principle of asepsis, which situation should the PN consider to be sterile?
- A. A one-inch border around the edges of a sterile field set up in the operating room
- B. A sterile glove that the PN thinks might have touched hair
- C. A wrapped, unopened sterile 4x4 gauze pad placed on a damp table top
- D. An open sterile Foley catheter kit set up on a table at the PN's waist level
Correct answer: A
Rationale: According to the principle of asepsis, the one-inch border around the edges of a sterile field set up in the operating room is considered non-sterile, while the central area remains sterile. Therefore, the PN should consider the situation described in choice A to be sterile. Choice B is incorrect because a glove that may have touched hair is contaminated. Choice C is incorrect as a sterile item placed on a damp surface is considered contaminated. Choice D is incorrect as a sterile kit set up at the PN's waist level is prone to contamination.
3. Which laboratory value is most important to monitor for a patient receiving heparin therapy?
- A. Platelet count
- B. Prothrombin time (PT)
- C. Partial thromboplastin time (PTT)
- D. International normalized ratio (INR)
Correct answer: C
Rationale: The correct answer is C, Partial thromboplastin time (PTT). PTT is monitored to assess the therapeutic effect of heparin therapy. It helps ensure that the heparin levels are within the desired range to prevent either clotting or excessive bleeding. Platelet count (A) is important but does not directly assess heparin's therapeutic effect. Prothrombin time (PT) (B) and International normalized ratio (INR) (D) are used to monitor patients on warfarin, not heparin therapy.
4. What is the primary purpose of administering Rho(D) immune globulin (RhoGAM) to an Rh-negative mother after childbirth?
- A. To prevent Rh sensitization in future pregnancies
- B. To treat anemia in the newborn
- C. To increase the mother's white blood cell count
- D. To prevent infection in the newborn
Correct answer: A
Rationale: The correct answer is A: To prevent Rh sensitization in future pregnancies. RhoGAM is given to an Rh-negative mother to prevent the development of antibodies against Rh-positive blood cells. This prevents Rh sensitization, which could lead to hemolytic disease in future Rh-positive pregnancies. Choices B, C, and D are incorrect because RhoGAM is not used to treat anemia in the newborn, increase the mother's white blood cell count, or prevent infection in the newborn.
5. Before administering an antibiotic that can cause nephrotoxicity, which lab value is most important for the nurse to review?
- A. Hemoglobin and Hematocrit
- B. Serum Calcium
- C. Serum Creatinine
- D. WBC
Correct answer: C
Rationale: The correct answer is C: Serum Creatinine. Serum creatinine is a key indicator of kidney function. Reviewing this value is crucial as it helps assess the client's risk for nephrotoxicity before administering the antibiotic. Elevated serum creatinine levels can indicate impaired kidney function, which would increase the risk of nephrotoxicity. Choices A, B, and D are not as directly related to kidney function and nephrotoxicity. Hemoglobin and hematocrit levels assess for anemia, serum calcium levels monitor calcium balance, and WBC count evaluates for infections. While these values are important for overall patient assessment, they are not as specific to assessing nephrotoxicity risk as serum creatinine.
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