HESI LPN
CAT Exam Practice Test
1. The healthcare provider is evaluating a client for potential dehydration. Which assessment finding is most indicative of fluid volume deficit?
- A. Moist mucous membranes
- B. Increased urine output
- C. Decreased skin turgor
- D. Elevated blood pressure
Correct answer: C
Rationale: Corrected Rationale: Decreased skin turgor is a classic sign of dehydration. When someone is dehydrated, the skin loses its elasticity and becomes less turgid. This change is easily assessed by gently pinching and pulling up the skin on the back of the hand or forearm. If the skin remains elevated or tents rather than quickly returning to its normal position, it indicates dehydration. Moist mucous membranes (Choice A) are actually a sign of adequate hydration. Increased urine output (Choice B) can be a sign of dehydration, but decreased skin turgor is a more specific indicator. Elevated blood pressure (Choice D) is not typically associated with fluid volume deficit and may indicate other health issues.
2. A man calls the hospital and asks to talk with the nurse about his girlfriend who was extremely intoxicated on admission and is receiving services for detoxification. He knows that she is in the facility and asks the nurse about her condition. What is the nurse's best response?
- A. ''I can only report that the client is in satisfactory condition.''
- B. ''Let me give you the telephone number for her room.''
- C. ''I cannot acknowledge if a client is here or not.''
- D. ''I will have the nurse who is working with her call you.''
Correct answer: C
Rationale: The nurse must adhere to confidentiality rules and cannot confirm the presence or condition of the client. Choice A is incorrect because disclosing the client's condition breaches confidentiality. Choice B is wrong as it reveals the client's room number, which is also a breach of confidentiality. Choice D is not the best response as it involves sharing information about the client without verifying the caller's identity or relationship to the client.
3. After successful resuscitation, a client is given propranolol and transferred to the Intensive Coronary Care Unit (ICCU). On admission, magnesium sulfate 4 grams IV in 250 ml D5W at one gram/hour. Which assessment findings require immediate intervention by the nurse?
- A. Dark amber urine draining via an indwelling catheter at a rate of 40 ml per hour
- B. Serum calcium of 9.0 mg/dl (2.2 mmol/L SI) and magnesium of 1.8 mg/dl or Eq/L (0.74 mmol/L SI)
- C. Sinus rhythm at 72 beats/minute and peripheral blood pressure of 99/62
- D. Respiratory rate of 10 breaths per minute
Correct answer: D
Rationale: The correct answer is D. A low respiratory rate of 10 breaths per minute is indicative of possible magnesium toxicity, which can be a serious condition requiring immediate intervention. It is a critical finding that needs prompt attention to prevent further complications. The other options are not as urgent: A - dark amber urine may indicate dehydration but does not require immediate intervention, B - serum calcium and magnesium levels are within normal limits, C - sinus rhythm and blood pressure values are also within normal range and do not require immediate action.
4. A new mother asks the nurse if the newborn infant has an infection because the healthcare provider prescribed a blood test called the TORCH screen test. Which response should the nurse offer to the mother's inquiry?
- A. Rising titers identify the etiology of certain neuro-sensory birth defects
- B. The screen determines the risk for inherited anomalies in the newborn
- C. The test identifies the correct antibiotic to give the newborn for an infection
- D. Exposure to infections that can cross the placenta cause a positive antibody titer
Correct answer: D
Rationale: The TORCH screen test is used to detect infections that can affect the newborn by showing if there was exposure to these infections. Choice A is incorrect because the TORCH screen test is not specifically for identifying the etiology of neuro-sensory birth defects. Choice B is incorrect because the test does not determine the risk for inherited anomalies. Choice C is incorrect because the test is not used to identify the correct antibiotic for an infection, but rather to detect infections that may have affected the newborn.
5. When lactulose (Cephulac) 30 ml QID is prescribed for a male client with advanced cirrhosis, and he complains that it causes diarrhea, what action should the nurse take in response to the client’s statement?
- A. Explain that diarrhea is expected, but the drug reduces ammonia levels
- B. Document that the client is non-compliant with his treatment plan
- C. Tell the client to be concerned about more significant side effects of this drug
- D. Obtain a prescription for loperamide (Imodium) 4mg PO PRN diarrhea
Correct answer: A
Rationale: The correct answer is A. Diarrhea is an expected side effect of lactulose when used to reduce ammonia levels in cirrhosis. It helps in decreasing the absorption of ammonia in the colon, thereby reducing its levels in the blood. Option B is incorrect because it is essential for the nurse to educate the client about the expected side effects of the medication rather than assuming non-compliance. Option C is incorrect as it instills unnecessary fear in the client by suggesting more significant side effects without addressing the current concern. Option D is incorrect as loperamide should not be given automatically for diarrhea caused by lactulose, as the diarrhea is a therapeutic effect of the medication in this context.
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