HESI LPN
CAT Exam Practice
1. 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.
2. What is the best response when a two-year-old boy begins to cry when his mother starts to leave?
- A. Say, 'Let's wave bye-bye to Mommy.'
- B. Say, 'Let me read this book to you.'
- C. Say, 'Two-year-olds usually stop crying the minute the parent leaves.'
- D. Say, 'Now, now, be a big boy, Mommy will be back soon.'
Correct answer: B
Rationale: The best response in this situation is to offer a distraction to the child. Reading a book can help soothe the child during separation from the parent by redirecting their attention. Choice A might not be as effective as providing a distraction like reading a book. Choice C dismisses the child's feelings and generalizes behavior, which is not helpful. Choice D diminishes the child's emotions and does not provide a constructive way to help the child cope with the separation anxiety.
3. When assessing a mildly obese 35-year-old female client, the nurse is unable to locate the gallbladder when palpating below the liver margin at the lateral border of the rectus abdominal muscle. What is the most likely explanation for the failure to locate the gallbladder by palpation?
- A. The client is too obese.
- B. Palpating in the wrong location.
- C. The gallbladder is normal.
- D. Deeper palpation technique is needed.
Correct answer: A
Rationale: The correct answer is A. Obesity can make it difficult to palpate the gallbladder due to increased abdominal tissue, making it challenging to locate specific structures. Choice B is incorrect because the nurse is palpating in the correct location below the liver margin at the lateral border of the rectus abdominal muscle, where the gallbladder is typically located. Choice C is incorrect as the inability to palpate the gallbladder does not necessarily indicate abnormality; it may be due to anatomical variations or technical challenges. Choice D is incorrect as the issue lies more with the difficulty posed by excess adipose tissue rather than the need for deeper palpation techniques.
4. On admission to the Emergency Department, a female client who was diagnosed with bipolar disorder 3 years ago reports that this morning she took a handful of medications and left a suicide note for her family. Which information is most important for the nurse to obtain?
- A. Which family member has the client's suicide note?
- B. When the client last took medications for bipolar disorder?
- C. What medications the client used for the suicide attempt?
- D. Whether the client has ever attempted suicide in the past?
Correct answer: C
Rationale: Identifying the specific medications taken during a suicide attempt is crucial for determining the appropriate treatment and assessing the potential toxicity or interactions. This information helps healthcare providers initiate the necessary interventions promptly. Option A is not as critical as knowing the medications used. Option B focuses on the timing of the last medication intake rather than the specific drugs taken for the overdose. Option D, while relevant, does not provide immediate actionable information compared to identifying the substances involved in the suicide attempt.
5. Following a thyroidectomy, a client experiences tetany. The nurse should expect to administer which intravenous medication?
- A. Sodium iodide solution
- B. Levothyroxine sodium (Synthroid)
- C. Calcium gluconate
- D. Propranolol (Inderal)
Correct answer: C
Rationale: Following a thyroidectomy, tetany can occur due to hypoparathyroidism, leading to low calcium levels. Therefore, the nurse should administer calcium gluconate intravenously to raise the calcium levels. Choice A, Sodium iodide solution, is incorrect as it is used for thyroid conditions, not for treating tetany. Choice B, Levothyroxine sodium (Synthroid), is incorrect as it is a thyroid hormone replacement and does not address low calcium levels. Choice D, Propranolol (Inderal), is incorrect as it is a beta-blocker used for conditions like hypertension and not indicated for tetany after thyroidectomy.
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