HESI LPN
HESI Fundamental Practice Exam
1. The healthcare provider is preparing to administer a subcutaneous injection of heparin. Which site is most appropriate for the healthcare provider to use?
- A. Deltoid muscle
- B. Ventrogluteal site
- C. Abdomen
- D. Dorsogluteal site
Correct answer: C
Rationale: The abdomen is the most appropriate site for administering subcutaneous heparin injections. The abdomen has a layer of subcutaneous fat and a good blood supply, making it an ideal site for subcutaneous injections. Using the deltoid muscle for heparin injections is not appropriate as it is typically used for intramuscular injections. The ventrogluteal site is more suitable for intramuscular injections rather than subcutaneous injections. The dorsogluteal site is no longer recommended for injections due to the risk of injury to the sciatic nerve.
2. A healthcare professional is preparing to assess a patient for orthostatic hypotension. Which piece of equipment will the professional obtain to assess for this condition?
- A. Thermometer
- B. Elastic stockings
- C. Blood pressure cuff
- D. Sequential compression devices
Correct answer: C
Rationale: To assess for orthostatic hypotension, a healthcare professional needs to obtain a blood pressure cuff. Orthostatic hypotension is defined as a drop in blood pressure greater than 20 mm Hg in systolic pressure or 10 mm Hg in diastolic pressure when moving from lying down to a standing position. A thermometer (Choice A) is used to measure body temperature and is not directly related to assessing orthostatic hypotension. Elastic stockings (Choice B) are used for preventing deep vein thrombosis and improving circulation in the lower extremities, not for assessing orthostatic hypotension. Sequential compression devices (Choice D) are mechanical pumps that are used to prevent deep vein thrombosis and are not specifically used for assessing orthostatic hypotension.
3. A nurse is caring for a client who has a new prescription for tube feeding. The nurse understands that the provider prescribed tube feeding because the client:
- A. Is unable to swallow foods by mouth
- B. Has a gastrointestinal obstruction
- C. Requires additional caloric intake to support healing
- D. Is at risk for aspiration
Correct answer: A
Rationale: The correct answer is A: 'Is unable to swallow foods by mouth.' Tube feeding is prescribed when a client is unable to safely swallow food by mouth but has a functional gastrointestinal tract. Option B, 'Has a gastrointestinal obstruction,' is incorrect as tube feeding is not typically prescribed for this reason. Option C, 'Requires additional caloric intake to support healing,' is incorrect because tube feeding is specifically for clients who are unable to swallow. Option D, 'Is at risk for aspiration,' is also incorrect as tube feeding would not be the primary intervention for aspiration risk; other strategies to reduce aspiration risk would be implemented instead.
4. An assistive personnel tells the nurse, 'I am unable to find a large blood pressure cuff for a client who is obese. Can I just use the regular cuff if I can get it to stay on?' The nurse replies that taking the blood pressure of a morbidly obese client with a regular blood pressure cuff will result in a reading that is:
- A. Low
- B. High
- C. Inaccurate
- D. Unaffected
Correct answer: B
Rationale: Using a regular blood pressure cuff on a morbidly obese client will lead to a falsely high blood pressure reading. This occurs because the cuff is not appropriately sized for the client's arm circumference, resulting in increased pressure on the artery and an inaccurate high reading. Choice A is incorrect because the reading will be falsely high, not low. Choice C is incorrect as the reading will not be accurate with an incorrectly sized cuff. Choice D is incorrect because the reading will be affected by using the wrong cuff size.
5. A client with diabetes mellitus reports feeling anxious, shaky, and weak. These findings are manifestations of which of the following complications?
- A. Hyperglycemia
- B. Hypoglycemia
- C. Ketoacidosis
- D. Dawn phenomenon
Correct answer: B
Rationale: The correct answer is B, Hypoglycemia. In diabetes mellitus, hypoglycemia can lead to symptoms such as anxiety, shakiness, and weakness due to low blood sugar levels. Hyperglycemia (choice A) is high blood sugar levels and typically presents with symptoms like increased thirst and frequent urination. Ketoacidosis (choice C) is a serious complication of diabetes characterized by high levels of ketones in the blood, leading to symptoms such as fruity breath and rapid breathing. The Dawn phenomenon (choice D) refers to an abnormal early-morning increase in blood sugar levels without an associated hypoglycemia during the night.
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