ATI RN
ATI Medical Surgical Proctored Exam
1. A client is on intravenous heparin to treat a pulmonary embolism. The client's most recent partial thromboplastin time (PTT) was 25 seconds. What action should the nurse anticipate?
- A. Decrease the heparin rate.
- B. Increase the heparin rate.
- C. No change to the heparin rate.
- D. Stop the heparin; start warfarin (Coumadin).
Correct answer: B
Rationale: For clients on heparin therapy, a PTT value of 1.5 to 2.5 times the normal range is required to ensure therapeutic anticoagulation. The normal PTT range is 25 to 35 seconds. In this case, the client's PTT of 25 seconds falls below the therapeutic range, indicating that the heparin dose is insufficient. Therefore, the nurse should anticipate increasing the heparin rate to achieve the desired therapeutic effect.
2. A client is experiencing an acute exacerbation of asthma. Which medication should the nurse administer first?
- A. Albuterol (Proventil)
- B. Ipratropium (Atrovent)
- C. Salmeterol (Serevent)
- D. Fluticasone (Flovent)
Correct answer: A
Rationale: During an acute exacerbation of asthma, the priority is to administer a short-acting beta2-agonist like Albuterol (Proventil) first. Albuterol acts quickly to dilate the airways and provide immediate relief of bronchospasm. Ipratropium (Atrovent) is an anticholinergic that can be used as an adjunct therapy. Salmeterol (Serevent) is a long-acting beta2-agonist intended for maintenance therapy, not for acute exacerbations. Fluticasone (Flovent) is a corticosteroid used for long-term asthma control and should not be the initial medication given during an acute exacerbation.
3. A client in a clinic presents with an acute asthma exacerbation. Which of the following medications should reduce the symptoms?
- A. Cromolyn via a metered-dose inhaler
- B. Montelukast orally
- C. Budesonide via a dry-powder inhaler
- D. Albuterol via a jet nebulizer
Correct answer: D
Rationale: During an acute asthma exacerbation, the preferred medication for symptom relief is a short-acting beta-agonist like albuterol, typically delivered via a jet nebulizer for quick onset and efficacy. Cromolyn, montelukast, and budesonide are not as effective for immediate symptom relief in acute exacerbations and are more commonly used for prevention or long-term management of asthma symptoms.
4. While suctioning the endotracheal tube of a client on a ventilator, the nurse notices an increase in the client's heart rate from 86/min to 110/min, with irregularity. What should the nurse do next?
- A. Obtain a cardiology consult.
- B. Suction the client less frequently.
- C. Administer an antidysrhythmic medication.
- D. Perform pre-oxygenation prior to suctioning.
Correct answer: D
Rationale: When a client's heart rate increases and becomes irregular during suctioning of an endotracheal tube, it indicates potential hypoxemia. Performing pre-oxygenation before suctioning helps prevent hypoxemia and subsequent dysrhythmias. This intervention ensures that the client has adequate oxygen reserves before the procedure, reducing the risk of complications related to suctioning.
5. When teaching a group of clients about emergency care for a snake bite, which of the following information should the nurse include?
- A. Raise the affected extremity above the level of the heart.
- B. Immobilize the affected extremity with a splint
- C. Apply ice to the bite area
- D. Apply a tourniquet to the affected extremity.
Correct answer: B
Rationale: In cases of snake bites, it is essential to immobilize the affected extremity with a splint to prevent the spread of venom throughout the body. Raising the extremity above the heart level can promote venom spread, and applying ice or a tourniquet can worsen the condition. Immobilization helps reduce movement and slows the circulation of venom, aiding in the prevention of further complications.
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