HESI LPN
CAT Exam Practice Test
1. A 70-year-old client is admitted to the hospital after 24 hours of acute diarrhea. To determine fluid status, which initial data is most important for the nurse to obtain?
- A. Usual and current weight
- B. Color and amount of urine
- C. Number and frequency of stools
- D. Intake and output 24 hours prior to admission
Correct answer: A
Rationale: The correct answer is A: Usual and current weight. Weight changes are the most direct indicator of fluid status in a patient with acute diarrhea. Monitoring weight loss or gain can provide crucial information about fluid balance. Option B, color and amount of urine, though important for assessing renal function, is not as direct an indicator of fluid status as weight. Option C, number and frequency of stools, is relevant for assessing the severity of diarrhea but does not provide direct information on fluid status. Option D, intake and output 24 hours prior to admission, does not reflect the current fluid status and may not be accurate in a rapidly changing condition like acute diarrhea.
2. When taking a health history of a client admitted with acute pancreatitis, which client complaint should be expected?
- A. A low-grade fever and left lower abdominal pain
- B. Severe headache and sweating all the time
- C. Severe mid-epigastric pain after ingesting a heavy meal
- D. Dull, continuous, right lower quadrant pain and nausea
Correct answer: C
Rationale: The correct answer is C: 'Severe mid-epigastric pain after ingesting a heavy meal.' This symptom is characteristic of acute pancreatitis due to inflammation of the pancreas, which often presents with severe pain in the mid-epigastric region that may worsen after eating. Choices A, B, and D describe symptoms that are not typically associated with acute pancreatitis. A low-grade fever and left lower abdominal pain (Choice A) may be more indicative of other conditions like diverticulitis. Severe headache and sweating (Choice B) are commonly seen in conditions like migraines or infections. Dull, continuous, right lower quadrant pain and nausea (Choice D) could be suggestive of appendicitis rather than acute pancreatitis.
3. The parents of a 6-year-old recently diagnosed with asthma should be taught that the symptom of acute episodes of asthma is due to which physiological response?
- A. Inflammation of the mucous membrane & bronchospasm
- B. Increased mucus production and bronchoconstriction
- C. Allergic reactions and hyperventilation
- D. Airway narrowing and decreased lung capacity
Correct answer: A
Rationale: The correct answer is A: Inflammation of the mucous membrane & bronchospasm. Acute asthma episodes are primarily caused by inflammation of the airways and bronchospasm, which lead to airway obstruction. Increased mucus production and bronchoconstriction (Choice B) are part of the physiological responses in asthma but do not directly cause acute episodes. Allergic reactions and hyperventilation (Choice C) are related to asthma triggers and responses but are not the direct causes of acute episodes. Airway narrowing and decreased lung capacity (Choice D) are consequences of inflammation and bronchospasm but do not explain the physiological response leading to acute asthma episodes.
4. The nurse is planning to assess a client's oxygen saturation to determine if additional oxygen is needed via nasal cannula. The client has bilateral below-the-knee amputations and weak, thread pedal pulses. What action should the nurse take?
- A. Document that an accurate oxygen saturation reading cannot be obtained
- B. Elevate the client's hands for five minutes prior to obtaining a reading from the finger
- C. Increase the oxygen based on the client's breathing patterns and lung sounds
- D. Place the oximeter clip on the earlobe to obtain the oxygen saturation reading
Correct answer: D
Rationale: Placing the oximeter clip on the earlobe is appropriate for clients with poor peripheral circulation, such as those with weak and thread pedal pulses due to bilateral below-the-knee amputations. This placement can provide a more accurate reading of oxygen saturation in such clients. Choice A is incorrect because alternative methods, such as earlobe placement, can be used to obtain accurate readings. Choice B is unnecessary and not related to obtaining an accurate oxygen saturation reading. Choice C is incorrect because increasing oxygen without assessing the oxygen saturation level first can be detrimental and is not based on evidence-based practice.
5. The nurse is demonstrating wound care to a client following abdominal surgery. In what order should the nurse teach the technique?
- A. Remove old dressing using clean gloves. Discard gloves with old dressing
- B. Moisten sterile gauze with normal saline. Clean wound from least contaminated area to most contaminated area
- C. Apply sterile gauze dressing to wound area
- D. Secure dressing with tape
Correct answer: A
Rationale: The correct order ensures proper aseptic technique and wound care to prevent infection. The first step is to remove the old dressing using clean gloves to prevent contamination. Discarding the gloves with the old dressing helps maintain cleanliness. Choices B, C, and D are incorrect because cleaning the wound, applying a new dressing, and securing it should come after removing the old dressing to maintain asepsis and prevent infection.
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