HESI LPN
CAT Exam Practice Test
1. Following a gunshot wound, an adult client has a hemoglobin level of 4 grams/dl (40 mmol/L SI). The nurse prepares to administer a unit of blood for an emergency transfusion. The client has AB negative blood type and the blood bank sends a unit of type A Rh negative, reporting that there is not type AB negative blood currently available. Which intervention should the nurse implement?
- A. Transfuse Type A negative blood until type AB negative is available.
- B. Recheck the client’s hemoglobin, blood type, and Rh factor.
- C. Administer normal saline solution until type AB negative is available.
- D. Obtain additional consent for the administration of type A negative blood.
Correct answer: A
Rationale: In emergency situations where AB negative blood is unavailable, type A negative blood can be transfused to a patient with AB negative blood type. Type A negative blood is compatible with AB negative blood, making it a suitable option until the correct blood type becomes available. Transfusion of Type A negative blood is crucial to address the severe anemia promptly. Rechecking the client’s hemoglobin, blood type, and Rh factor (Choice B) may delay necessary treatment. Administering normal saline solution (Choice C) is not a substitute for blood transfusion in cases of severe anemia. Obtaining additional consent for the administration of type A negative blood (Choice D) is unnecessary as the situation is emergent and the blood type is compatible.
2. After a client with leukemia undergoes a bone marrow biopsy and is found to have thrombocytopenia, which nursing assessment is most important following the procedure?
- A. Observe the aspiration site
- B. Assess body temperature
- C. Monitor skin elasticity
- D. Measure urinary output
Correct answer: A
Rationale: The correct answer is to observe the aspiration site. Thrombocytopenia, characterized by a low platelet count, increases the risk of bleeding. Therefore, monitoring the biopsy site for bleeding or hematoma is crucial to ensure early detection and intervention. Assessing body temperature (choice B) is not directly related to the increased bleeding risk associated with thrombocytopenia. Monitoring skin elasticity (choice C) and measuring urinary output (choice D) are important assessments but are not the priority in this situation where bleeding risk needs immediate attention.
3. The client who is to avoid any weight-bearing on the left leg is using a 3-point crutch gait for ambulation. What is the best action for the nurse to initiate?
- A. Encourage continued use of the 3-point crutch gait by the client
- B. Encourage the client to use a wheelchair for mobility
- C. Instruct the client in the use of a 4-point crutch gait
- D. Instruct the client in the use of a 2-point crutch gait
Correct answer: C
Rationale: In this scenario, the client needs to avoid weight-bearing on the left leg. A 4-point crutch gait involves using both crutches and both legs, making it more appropriate for weight-bearing restrictions. Encouraging the use of a 3-point gait (choice A) would not provide adequate support for the client's condition. While using a wheelchair (choice B) could be an option, instructing the client in a 4-point crutch gait would promote mobility while adhering to weight-bearing restrictions. A 2-point crutch gait (choice D) involves using both crutches and one leg, which is not suitable for avoiding weight-bearing on the left leg.
4. The nurse is calculating the one-minute Apgar score for a newborn male infant and determines that his heart rate is 150 beats/minute, he has a vigorous cry, his muscle tone is good with total flexion, he has quick reflex irritability, and his color is dusky and cyanotic. What Apgar score should the nurse assign to the infant?
- A. 8
- B. 9
- C. 6
- D. 7
Correct answer: A
Rationale: The correct answer is A: 8. The Apgar score is calculated based on five parameters: heart rate, respiratory effort, muscle tone, reflex irritability, and color. In this case, the infant has a good heart rate, vigorous cry, good muscle tone, and quick reflex irritability, which would total to 8. The only factor affecting the score is the cyanotic color, which could indicate potential respiratory or circulatory issues. Choices B, C, and D are incorrect as they do not reflect the overall assessment provided in the scenario.
5. 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.
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