HESI LPN
HESI CAT Exam Test Bank
1. A male client with angina pectoris is being discharged from the hospital. What instructions should the nurse plan to include in the discharge teaching?
- A. Engage in physical exercise before eating to help decrease cholesterol levels.
- B. Avoid walking briskly in cold weather to prevent a decrease in cardiac output.
- C. Keep nitroglycerin in a light-colored plastic bottle and readily available.
- D. Avoid all isometric exercises, but walk regularly.
Correct answer: C
Rationale: The correct answer is to keep nitroglycerin in a light-colored container and readily available. Nitroglycerin should be protected from light to maintain its effectiveness. Option A is incorrect because physical exercise immediately before eating can trigger angina. Option B is incorrect as cold weather can exacerbate angina symptoms. Option D is incorrect as isometric exercises can increase the workload on the heart, which is not recommended for individuals with angina.
2. When attempting to establish risk reduction strategies in a community, the nurse notes that regional studies indicate a high number of persons with growth stunting and irreversible mental deficiencies caused by hypothyroidism (cretinism). The nurse should seek funding to implement which screening measure?
- A. T3 levels in school-aged children
- B. T4 levels in newborns
- C. TSH levels in women over 45
- D. Iodine levels in all persons over 60
Correct answer: B
Rationale: Screening T4 levels in newborns is crucial as it helps in the early detection of hypothyroidism, which can prevent conditions like cretinism. Checking T3 levels in school-aged children (Choice A) is not the most appropriate measure for early detection of hypothyroidism in newborns. Monitoring TSH levels in women over 45 (Choice C) is not directly related to detecting hypothyroidism in newborns. Additionally, monitoring iodine levels in all persons over 60 (Choice D) is not specifically aimed at early detection of hypothyroidism in newborns, which is crucial to prevent cretinism.
3. In what sequence should the nurse prepare the dose of insulin for a client whose finger stick glucose is 210 mg/dl and is receiving a sliding scale dose of short-acting insulin before breakfast?
- A. Clean the vial's rubber stopper with an alcohol swab, withdraw the correct dose of insulin, and then inject air equal to the insulin dose into the vial.
- B. Inject air equal to the insulin dose into the vial, withdraw the correct dose of insulin, and then clean the vial's rubber stopper with an alcohol swab.
- C. Withdraw the correct dose of insulin, inject air equal to the insulin dose into the vial, and then clean the vial's rubber stopper with an alcohol swab.
- D. Clean the vial's rubber stopper with an alcohol swab, inject air equal to the insulin dose into the vial, and then withdraw the correct dose of insulin.
Correct answer: A
Rationale: The correct sequence for preparing a dose of insulin involves ensuring proper aseptic technique. First, clean the vial's rubber stopper with an alcohol swab to prevent contamination. Second, withdraw the correct dose of insulin to be administered. Lastly, inject air equal to the insulin dose into the vial to maintain proper pressure for withdrawing the medication. This sequence ensures the medication is prepared safely and accurately. Choice A is correct as it follows this sequence. Choices B, C, and D present incorrect sequences that may compromise patient safety by not following the correct aseptic technique. Choice B injects air into the vial before withdrawing insulin, which is incorrect. Choice C reverses the order of withdrawing insulin and injecting air. Choice D withdraws the insulin before injecting air, which can affect the pressure inside the vial and lead to inaccurate dosing.
4. A premature infant weighing 1,200 grams at birth receives a prescription for beractant (Survanta) 120 mg endotracheal now and q6 hr for 24 hr. The recommended dose for beractant is 100 mg/kg birth weight per dose. Single-use vials of Survanta are labeled 100 mg/4 ml. What action should the nurse take?
- A. Give 4.8 ml q6 hr
- B. Notify the healthcare provider that the dose is too high
- C. Notify the healthcare provider that the dose is too low
- D. Give 1.2 ml q6 hr
Correct answer: A
Rationale: The correct answer is to give 4.8 ml q6 hr. To calculate the dose, you divide the prescribed dose of 120 mg by the concentration of Survanta, which is 100 mg per 4 ml. This results in 4.8 ml per dose, as 120 mg ÷ 100 mg/4 ml = 4.8 ml. Option B suggesting to notify the healthcare provider that the dose is too high is incorrect because the calculated dose of 4.8 ml is based on the recommended dose of 100 mg/kg birth weight. Option C suggesting to notify the healthcare provider that the dose is too low is incorrect as the calculated dose is based on the correct dosage calculation. Option D suggesting to give 1.2 ml q6 hr is incorrect because it doesn't align with the correct calculation.
5. To differentiate adventitious lung sounds associated with heart failure from those associated with bacterial pneumonia, what information should the nurse review?
- A. Sputum culture findings
- B. Oxygen saturation level
- C. Amount of coughing
- D. Respiratory rate
Correct answer: A
Rationale: The correct answer is A: Sputum culture findings. Reviewing sputum culture findings can provide valuable information to differentiate between bacterial pneumonia and heart failure, as the type of bacteria present in the sputum can help identify the specific infection. Oxygen saturation level (Choice B) is important for assessing oxygenation status but does not directly help in distinguishing between the two conditions based on lung sounds. The amount of coughing (Choice C) and respiratory rate (Choice D) may offer some clinical insights but are not as specific or diagnostic as sputum culture findings when differentiating between heart failure and bacterial pneumonia.
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