HESI RN
HESI RN CAT Exit Exam 1
1. Which assessment finding is most indicative of deep vein thrombosis (DVT) in a client's right leg?
- A. Dorsiflexes the right foot and left on command
- B. A 3 by 5 cm ecchymosis area covering the right calf
- C. Right calf is 3 cm larger in circumference than the left
- D. Bilateral lower extremity has 3+ pitting edema
Correct answer: C
Rationale: The correct answer is C because a significant increase in the circumference of the right calf compared to the left calf is a classic sign of deep vein thrombosis (DVT). Option A is incorrect as dorsiflexing the right foot and left on command does not specifically indicate DVT. Option B describes an ecchymosis area which is more indicative of a bruise rather than DVT. Option D suggests bilateral lower extremity edema, which is not specific to DVT and can be seen in various conditions such as heart failure or renal issues.
2. A 14-year-old girl with asthma complains of feeling nervous and jittery after a respiratory therapy bronchodilator treatment. What explanation is best for the nurse to provide to this adolescent?
- A. Nervousness should disappear when hypoxia is relieved after several bronchodilator treatments
- B. Tremors result from the rapid dilation of the bronchioles and an increased heart rate
- C. A fast heart rate and jitteriness are side effects of the bronchodilator treatment containing albuterol
- D. Excessive coughing, which causes tachypnea and anxiety, result from the use of bronchodilators
Correct answer: C
Rationale: The correct answer is C because a fast heart rate and jitteriness are common side effects of bronchodilators like albuterol. Choice A is incorrect as nervousness is more likely a side effect of the medication than solely related to hypoxia. Choice B is incorrect as it provides a partial explanation focusing only on tremors and heart rate, not mentioning jitteriness. Choice D is incorrect because excessive coughing and tachypnea are not typically associated with bronchodilator use; instead, they may indicate inadequate relief or other issues.
3. When caring for a laboring client whose contractions are occurring every 2 to 3 min, the nurse should document that the pump is infusing how many ml/hr?
- A. 42
- B. 50
- C. 60
- D. 70
Correct answer: A
Rationale: To calculate the infusion rate, we first need to determine the frequency of contractions per hour. If contractions are occurring every 2 to 3 minutes, this corresponds to 20 to 30 contractions in an hour (60 minutes). The average is 25 contractions in an hour. The pump should be infusing 1 ml for each contraction, so the infusion rate should be 25 ml/hr. Therefore, the correct answer is 42 ml/hr. Choices B, C, and D are incorrect as they do not align with the calculation based on the given data.
4. The nurse is assessing a client who has a prescription for digoxin (Lanoxin). Which finding indicates that the client is at risk for digoxin toxicity?
- A. Heart rate of 60 beats per minute
- B. Blood pressure of 120/80 mm Hg
- C. Respiratory rate of 18 breaths per minute
- D. Serum potassium level of 3.0 mEq/L
Correct answer: D
Rationale: A low serum potassium level increases the risk of digoxin toxicity. Digoxin toxicity is more likely to occur in individuals with low potassium levels because potassium is crucial for proper heart function. A heart rate of 60 beats per minute, blood pressure of 120/80 mm Hg, and respiratory rate of 18 breaths per minute are within normal ranges and do not directly indicate an increased risk of digoxin toxicity.
5. The nurse is preparing to administer an IM injection to a 6-month-old child. Which injection site is best for the nurse to use?
- A. Vastus lateralis
- B. Deltoid
- C. Ventrogluteal
- D. Dorsogluteal
Correct answer: A
Rationale: The vastus lateralis is the preferred site for IM injections in infants due to muscle development. In infants under 1 year old, the vastus lateralis muscle in the thigh is often used for IM injections due to its size and development. The deltoid muscle is typically used for adults, and the ventrogluteal and dorsogluteal sites are more commonly used for older children and adults. Therefore, the best choice for administering an IM injection to a 6-month-old child is the vastus lateralis.
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