HESI LPN
Community Health HESI Practice Exam
1. BCG vaccine is supplied in:
- A. freeze-dried form in a sealed glass ampule
- B. liquid form in a sealed glass ampule
- C. liquid form in a vial
- D. both 2 and 3
Correct answer: A
Rationale: The correct answer is A. BCG vaccine is commonly supplied in freeze-dried form, not in liquid form. Therefore, choices B and C are incorrect. Option D is also incorrect as the vaccine is not supplied in liquid form in a glass ampule.
2. During an assessment, a healthcare professional observes significant tenting of the skin over an older adult client's forearm. What factor should the healthcare professional primarily consider as a cause for this finding?
- A. Thin, parchment-like skin
- B. Loss of adipose tissue
- C. Dehydration
- D. Diminished skin elasticity
Correct answer: C
Rationale: Dehydration is the primary factor to consider in this scenario. Dehydration leads to decreased skin turgor and tenting, where the skin does not return to its normal position when pinched. While thin, parchment-like skin, loss of adipose tissue, and diminished skin elasticity can contribute to skin changes, they are not the primary cause of the significant tenting observed.
3. A client with chronic obstructive pulmonary disease (COPD) is receiving home oxygen therapy. What is the most important instruction the nurse should provide?
- A. Use oxygen at the highest flow rate tolerated
- B. Avoid wearing oxygen during physical activity
- C. Do not smoke while using oxygen
- D. Store oxygen tanks in a cool, dark place
Correct answer: C
Rationale: The correct answer is C: 'Do not smoke while using oxygen.' Smoking while using oxygen can lead to a serious fire hazard, as oxygen supports combustion. This instruction is crucial to prevent potential harm to the client. Choices A, B, and D are incorrect. Using oxygen at the highest flow rate tolerated can be harmful, avoiding wearing oxygen during physical activity may limit the client's mobility unnecessarily, and storing oxygen tanks in a cool, dark place, although important, is not as critical as the instruction to avoid smoking while using oxygen.
4. The nurse is studying antacids that contain magnesium and calcium for the pharmacology exam. The student nurse remembers that these antacids should be used with caution in patients with which condition?
- A. Hypertension
- B. Renal failure
- C. Heart failure
- D. Peptic ulcer disease
Correct answer: B
Rationale: Magnesium and calcium can accumulate in patients with renal failure, leading to toxicity.
5. The nurse is teaching a client how to collect a sputum specimen. Which steps should the nurse instruct the client to follow when collecting sputum?
- A. Breathe deeply, followed by swallowing.
- B. Breathe deeply, followed by spitting into a cup.
- C. Breathe deeply, followed by coughing up the sputum.
- D. Breathe deeply, followed by clearing the throat.
Correct answer: C
Rationale: The correct answer is to instruct the client to breathe deeply followed by coughing up the sputum. This method ensures that the specimen is collected from the lower respiratory tract and is not contaminated by saliva. Choice A (swallowing) does not result in sputum collection, while choice B (spitting into a cup) may lead to saliva contamination. Choice D (clearing the throat) is not an effective way to collect sputum as it may involve getting rid of saliva, not sputum.