HESI LPN
Medical Surgical HESI
1. A young adult client, admitted to the emergency department following a motor vehicle collision, is transfused with 4 units of PRBCs. The client’s pretransfusion hematocrit is 17%. Which hematocrit value should the nurse expect the client to have after all PRBCs have been transfused?
- A. 23%
- B. 25%
- C. 27%
- D. 29%
Correct answer: D
Rationale: One unit of PRBCs typically raises the hematocrit by 3%. Since the client received 4 units, the hematocrit is expected to increase by approximately 12% (4 units x 3% per unit). Therefore, the nurse should expect the client's hematocrit to be 29% after all PRBCs have been transfused. Choices A, B, and C are incorrect as they do not account for the cumulative effect of multiple PRBC units on the hematocrit level.
2. A middle-aged man who has a 35-year smoking history presents to the emergency department confused and short of breath. Before starting oxygen, these baseline arterial blood gases (ABGs) are obtained: pH=7.25, pCO2=50 mmHg, HCO3=30 mEq/L. These findings indicate to the nurse that the client is experiencing which acid-base imbalance?
- A. Metabolic acidosis.
- B. Respiratory acidosis.
- C. Metabolic alkalosis.
- D. Respiratory alkalosis.
Correct answer: B
Rationale: The ABG results show a low pH (acidosis) and increased pCO2, indicating respiratory acidosis. In respiratory acidosis, the lungs cannot remove enough CO2, leading to its accumulation in the blood. This often occurs in conditions like COPD and is consistent with the patient's smoking history. Metabolic acidosis (choice A) is characterized by low pH and low HCO3 levels. Metabolic alkalosis (choice C) is marked by high pH and high HCO3 levels. Respiratory alkalosis (choice D) presents with high pH and low pCO2.
3. An older male client tells the nurse that he is losing sleep because he has to get up several times at night to go to the bathroom, that he has trouble starting his urinary stream, and that he does not feel like his bladder is ever completely empty. Which intervention should the nurse implement?
- A. Collect a urine specimen for culture analysis
- B. Review the client's fluid intake prior to bedtime
- C. Palpate the bladder above the symphysis pubis
- D. Obtain a fingerstick glucose level
Correct answer: C
Rationale: Palpating the bladder above the symphysis pubis is the most appropriate intervention in this scenario. It helps assess for urinary retention, which is a common issue in older males presenting with symptoms like difficulty starting urinary stream and feeling of incomplete bladder emptying. Collecting a urine specimen for culture analysis (Choice A) may be necessary in other situations like suspected urinary tract infection. Reviewing the client's fluid intake (Choice B) is important but does not directly address the current issue of urinary retention. Obtaining a fingerstick glucose level (Choice D) is not relevant to the client's urinary symptoms.
4. A client is admitted to the emergency department with symptoms of arm numbness, chest pain, and nausea/vomiting. The examining healthcare provider believes that the client has experienced an acute myocardial infarction (AMI) within the past three hours and would like to initiate tissue plasminogen activator (tPA) therapy. Which client history findings contraindicate the use of tPA?
- A. Treats hypoglycemia with an oral hypoglycemic agent.
- B. Had a cerebrovascular hemorrhage 2 months ago.
- C. Current age 65, father died of MI at 55.
- D. Report of being intolerant of medication that contains aspirin.
Correct answer: B
Rationale: A history of cerebrovascular hemorrhage is a contraindication for tPA therapy due to the risk of bleeding. Choice A is incorrect because treating hypoglycemia with an oral hypoglycemic agent is not a contraindication for tPA therapy. Choice C is incorrect as age and family history of MI do not contraindicate the use of tPA. Choice D is incorrect as being intolerant of medication containing aspirin is not a contraindication for tPA therapy.
5. Fluids are restricted to 1500 ml/day for a male client with AKI. He is frustrated and complaining of constant thirst, and the nurse discovers that the family is providing the client with additional fluids. What intervention should the nurse implement?
- A. Remove all sources of liquids from the client's room
- B. Allow family to give the client a measured amount of ice chips
- C. Restrict family visiting until the client's condition is stable
- D. Provide the client with oral swabs to moisten his mouth
Correct answer: D
Rationale: In this scenario, the nurse should provide the client with oral swabs to moisten his mouth. This intervention helps alleviate the client's thirst without increasing fluid intake, which is essential in managing AKI. Removing all sources of liquids from the client's room (Choice A) may not address the underlying issue of thirst and could lead to increased frustration. Allowing the family to give the client ice chips (Choice B) would add to the client's fluid intake, contradicting the restriction. Restricting family visiting (Choice C) is not necessary and does not directly address the client's thirst.
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