HESI LPN
HESI Fundamentals Study Guide
1. A healthcare professional is preparing to administer enoxaparin subcutaneously to a client. Which of the following actions should the healthcare professional take?
- A. Administer the medication with the needle at a 45-degree angle.
- B. Administer the medication with the needle at a 90-degree angle.
- C. Inject the medication into the muscle.
- D. Pinch the skin before injecting.
Correct answer: B
Rationale: Enoxaparin is a medication that is administered subcutaneously, which means it should be injected into the fatty tissue layer beneath the skin. Administering enoxaparin at a 90-degree angle ensures proper absorption and reduces the risk of injecting the medication into muscle tissue, which could affect its effectiveness. Injecting the medication at a 45-degree angle may lead to improper absorption as it may not reach the subcutaneous tissue adequately. Injecting the medication into the muscle instead of subcutaneously can alter the absorption rate and therapeutic effects. Pinching the skin before injecting is not necessary for administering enoxaparin subcutaneously and may cause unnecessary discomfort to the client.
2. A postoperative client has been diagnosed with paralytic ileus. When performing auscultation of the client’s abdomen, the nurse expects the bowel sounds to be:
- A. Absent
- B. Hyperactive
- C. Normal
- D. Hypoactive
Correct answer: A
Rationale: In paralytic ileus, bowel sounds are typically absent or significantly reduced due to decreased motility of the intestines. This absence of bowel sounds is a key characteristic used in diagnosing paralytic ileus. Hyperactive bowel sounds are not expected in this condition as there is a lack of normal peristalsis. Normal bowel sounds would not be present in paralytic ileus, and hypoactive bowel sounds, which indicate decreased bowel motility, are more commonly associated with conditions like postoperative ileus or constipation, rather than paralytic ileus.
3. A client who is postoperative has paralytic ileus. Which of the following abdominal assessments should the nurse expect?
- A. Absent bowel sounds with distention
- B. Hyperactive bowel sounds with pain
- C. Normal bowel sounds with cramping
- D. Diminished bowel sounds with tenderness
Correct answer: A
Rationale: Paralytic ileus is a condition where there is a temporary paralysis of the bowel, leading to absent bowel sounds and abdominal distention. This occurs because the bowel is not functioning properly to propel contents, resulting in a lack of bowel sounds. Absent bowel sounds with distention are typical findings in paralytic ileus. Hyperactive bowel sounds with pain are more indicative of increased motility and are not expected in paralytic ileus. Normal bowel sounds with cramping may be seen in other conditions, such as gastroenteritis. Diminished bowel sounds with tenderness are not typical findings in paralytic ileus.
4. The healthcare provider retrieves hydromorphone 4mg/mL from the Pyxis MedStation, an automated dispensing system, for a client who is receiving hydromorphone 3 mg IM every 6 hours PRN for severe pain. How many mL should the healthcare provider administer to the client?
- A. 0.75 mL
- B. 1 mL
- C. 0.8 mL
- D. 1.2 mL
Correct answer: C
Rationale: The correct dosage calculation is to divide the prescribed dose by the concentration of the medication to determine the volume needed. In this case, 3 mg (prescribed dose) divided by 4 mg/mL (concentration) equals 0.75 mL. Therefore, the healthcare provider should administer 0.75 mL of hydromorphone to the client. Choices A, B, and D are incorrect because they do not accurately calculate the required volume based on the prescription and concentration provided.
5. A nurse is collecting data from an older adult client as part of a neurologic examination. Which of the following findings should the nurse expect as changes associated with aging?
- A. Slower light touch sensation
- B. Some vision and hearing decline
- C. Slower fine finger movement
- D. Some short-term memory decline
Correct answer: B
Rationale: As individuals age, it is common to experience changes in vision and hearing, leading to some decline in these senses. Slower light touch sensation and slower fine finger movement are also typical findings associated with aging. However, some short-term memory decline is more closely related to cognitive aging rather than typical age-related changes in the neurologic system. Therefore, the correct answer is the decline in vision and hearing. Decreased risk of depression is not a typical finding in aging; in fact, the risk of depression may increase as individuals age.
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