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. A 13-year-old girl, diagnosed with diabetes mellitus Type 1 at the age of 9, is admitted to the hospital in diabetic ketoacidosis. Which occurrence is the most likely cause of the ketoacidosis?
- A. Ate an extra peanut butter sandwich before gym class
- B. Incorrectly drew up and administered too much insulin
- C. Was not hungry, so she skipped eating lunch
- D. Has had a cold and ear infection for the past two days
Correct answer: B
Rationale: The correct answer is B. Incorrect insulin administration is a common cause of diabetic ketoacidosis. Administering too much insulin can lead to uncontrolled hyperglycemia, where the body starts breaking down fat for energy, resulting in the production of ketones. Choices A, C, and D are less likely to directly cause diabetic ketoacidosis. Eating an extra peanut butter sandwich, skipping lunch, or having a cold and ear infection would not directly lead to the metabolic derangements seen in diabetic ketoacidosis.
3. A client with diabetic peripheral neuropathy has been taking pregabalin for 4 days. Which finding indicates to the nurse that the medication is effective?
- A. Granulating tissue in foot ulcer
- B. Full volume of pedal pulse
- C. Reduced level of pain
- D. Improved visual activity
Correct answer: C
Rationale: The correct answer is C: 'Reduced level of pain.' Pregabalin is used to manage neuropathic pain, so a reduction in pain indicates the medication's effectiveness in this case. Granulating tissue in a foot ulcer and the full volume of a pedal pulse are not direct indicators of pregabalin's effectiveness in managing neuropathic pain. Improved visual activity is not related to the effects of pregabalin in diabetic peripheral neuropathy.
4. A college student brings a dorm roommate to the campus clinic because the roommate has been talking to someone who is not present. The client tells the nurse that her voices are saying, “Kill, Kill.” What question should the nurse ask the client next?
- A. When did these voices begin?
- B. Are you planning to obey the voices?
- C. Have you taken any hallucinogens?
- D. Do you believe the voices are real?
Correct answer: B
Rationale: Assessing whether the client has a plan to act on the voices is critical for evaluating the risk of harm. Asking if the client is planning to obey the voices helps determine the immediate safety concerns. While understanding when the voices began could provide insight into the situation, assessing the intent to act on them is more urgent. Asking about hallucinogen use may be relevant but does not address the immediate safety issue. Inquiring about the client's belief in the reality of the voices is important but does not address the immediate risk of harm.
5. After removing an IV that became infiltrated in the client’s left forearm, which site should the nurse select as a possible site to insert another IV catheter?
- A. Right hand
- B. Right forearm
- C. Left hand
- D. Right subclavian
Correct answer: A
Rationale: The correct answer is A: Right hand. When an IV becomes infiltrated in the client's left forearm, it is essential to avoid the same side due to the risk of complications. Therefore, the right hand is a suitable alternative site for IV insertion. Choices B, C, and D are incorrect. Choosing the right forearm (B) would still be on the same side, which increases the risk of complications. The left hand (C) is not a preferred option immediately after an infiltration in the left forearm. The right subclavian (D) is an invasive site typically reserved for central line placement and not a first-line choice for IV insertion.
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