HESI LPN
CAT Exam Practice Test
1. An adult suffered burns to the face and chest resulting from a grease fire. On admission, the client was intubated, and a 2-liter bolus of normal saline was administered IV. Currently, the normal saline is infusing at 250 ml/hour. The client’s heart rate is 120 beats/minute, blood pressure is 90/50 mmHg, respirations are 12 breaths/minute over the ventilated 12 breaths for a total of 24 breaths/minute, and the central venous pressure (CVP) is 4 mm H2O. Which intervention should the nurse implement?
- A. Increase the rate of normal saline infusion
- B. Infuse an additional bolus of normal saline
- C. Lower the head of the bed to a recumbent position
- D. Bring a tracheostomy tray to the bedside
Correct answer: B
Rationale: The correct intervention is to infuse an additional bolus of normal saline. The client's presentation with a heart rate of 120 beats/minute, hypotensive blood pressure of 90/50 mmHg, and low CVP of 4 mm H2O indicates hypovolemic shock. Administering more normal saline can help in restoring intravascular volume and improving perfusion. Increasing the rate of normal saline infusion (Choice A) is not the best choice as it may lead to fluid overload. Lowering the head of the bed to a recumbent position (Choice C) could worsen hypotension by reducing venous return. Bringing a tracheostomy tray to the bedside (Choice D) is not a priority at this time as the client is already intubated, and the immediate concern is addressing the hypovolemia.
2. The nurse should explain to a client with lung cancer that pleurodesis is performed to achieve which expected outcome?
- A. Debulk tumor to maintain patency of air passages
- B. Relieve empyema after pneumonectomy
- C. Prevent the formation of effusion fluid
- D. Remove fluid from the intrapleural space
Correct answer: C
Rationale: The correct answer is C. Pleurodesis is a procedure used to prevent the re-accumulation of pleural effusion by creating adhesion between the pleurae. This helps prevent the formation of effusion fluid. Choices A, B, and D are incorrect because pleurodesis is not performed to debulk tumors, relieve empyema after pneumonectomy, or remove fluid from the intrapleural space. Understanding the purpose of pleurodesis is essential in providing accurate patient education and care.
3. What information is most important for the nurse to provide to an adolescent female prescribed azithromycin for lower lobe pneumonia and recurrent chlamydia?
- A. Ensure the partner is screened for chlamydia
- B. Report any signs of liver dysfunction immediately
- C. Avoid consuming grapefruit juice while on this medication
- D. Use two forms of contraception while taking this drug
Correct answer: D
Rationale: The most important information for the nurse to provide to an adolescent female prescribed azithromycin for lower lobe pneumonia and recurrent chlamydia is to use two forms of contraception while taking this drug. Azithromycin can reduce the effectiveness of hormonal contraceptives, increasing the risk of pregnancy. It is crucial to convey this information to prevent unintended pregnancies. Option A is incorrect as the partner should be screened for chlamydia, not HIV, in this case. Option B is not the most important information to provide as liver dysfunction is a rare side effect of azithromycin. Option C is irrelevant as grapefruit juice does not interact with azithromycin. Therefore, the priority information to convey is the importance of using dual contraception to prevent pregnancy.
4. The nurse is preparing to administer an IM injection to a 6-month-old child. Which injection site is best for the nurse to use?
- A. Vastus lateralis
- B. Deltoid
- C. Ventrogluteal
- D. Dorsogluteal
Correct answer: A
Rationale: The vastus lateralis is the preferred site for IM injections in infants due to their limited muscle mass and safety. Infants do not have well-developed muscle mass, making the vastus lateralis the best option for IM injections. The deltoid muscle is typically used for older children and adults. Ventrogluteal and dorsogluteal sites are not recommended for infants due to safety concerns, including the risk of damaging the sciatic nerve. Therefore, the correct choice is the vastus lateralis for IM injections in infants.
5. A young adult male who is being seen at the employee health care clinic for an annual assessment tells the nurse that his mother was diagnosed with schizophrenia when she was his age and that life with a schizophrenic mother was difficult indeed. Which response is best for the nurse to provide?
- A. Ask the client if he is worried about becoming schizophrenic at the age his mother was diagnosed.
- B. Encourage the client to seek genetic counseling to determine his risk for mental illness.
- C. Inform the client that his mother’s schizophrenia has affected his psychological development.
- D. Tell the client that mental illness has a familial predisposition so he should see a psychiatrist.
Correct answer: B
Rationale: Genetic counseling can help assess risk and provide guidance for the client’s concerns about potential hereditary conditions.
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