ATI RN
ATI Pharmacology Proctored Exam 2023
1. A healthcare professional is preparing to administer heparin 15,000 units subcutaneously every 12 hr. The amount available is heparin injection 20,000 units/mL. How many mL should the healthcare professional administer per dose?
- A. 0.8 mL
- B. 0.75 mL
- C. 0.5 mL
- D. 1 mL
Correct answer: A
Rationale: To calculate the volume to administer, use the formula: (Desired dose / Concentration) = Volume to administer. In this case, (15,000 units / 20,000 units/mL) = 0.75 mL, which is rounded up to 0.8 mL. Therefore, the healthcare professional should administer 0.8 mL per dose of heparin. Choice B (0.75 mL) is incorrect as it is the exact calculated volume but needs to be rounded up. Choices C (0.5 mL) and D (1 mL) are incorrect as they do not reflect the correct calculated volume for the desired dose of heparin.
2. Which of the following medications is a bronchodilator?
- A. Albuterol
- B. Omeprazole
- C. Ondansetron
- D. Senna
Correct answer: A
Rationale: Albuterol is classified as a bronchodilator, which is commonly used to treat conditions like asthma by relaxing the muscles in the airways and increasing airflow to the lungs. Omeprazole is a proton pump inhibitor used to reduce stomach acid production, while ondansetron is an anti-nausea medication, and senna is a laxative.
3. A client has a new prescription for Labetalol. Which of the following instructions should the nurse include?
- A. Take this medication at bedtime.
- B. Avoid sudden discontinuation of the medication.
- C. Increase your intake of sodium-rich foods.
- D. Avoid drinking grapefruit juice.
Correct answer: B
Rationale: The correct instruction for a client on Labetalol is to avoid sudden discontinuation of the medication. Labetalol is a beta-blocker that, if abruptly stopped, can lead to rebound hypertension and other cardiac issues. It is essential for patients to taper off this medication under medical supervision to prevent adverse effects.
4. A healthcare professional reviewing a client's health record notes a new prescription for Lisinopril 10 mg PO once daily. The healthcare professional should identify this as which of the following types of prescription?
- A. Single
- B. Stat
- C. Routine
- D. Standing
Correct answer: C
Rationale: A routine prescription indicates that the medication is to be administered on a regular schedule, typically daily, without a specified termination date or a specific number of doses. In this case, Lisinopril 10 mg PO once daily is to be given regularly until the healthcare provider decides to discontinue it. This type of prescription is common for medications that are part of the client's ongoing treatment regimen. The other choices are incorrect: 'Single' does not provide information about the frequency or duration of administration, 'Stat' indicates an urgent, one-time administration, and 'Standing' refers to a prescription that is automatically renewed without the need for a new order for each administration.
5. A client has a new prescription for Propranolol. Which of the following findings should the healthcare provider identify as a contraindication to this medication?
- A. Asthma
- B. Diabetes mellitus
- C. Hypertension
- D. Glaucoma
Correct answer: A
Rationale: Propranolol is a non-selective beta-blocker that can cause bronchoconstriction, making it contraindicated for clients with asthma. Asthma is a contraindication for Propranolol due to the potential of worsening bronchoconstriction and causing respiratory distress in individuals with this condition. Diabetes mellitus, hypertension, and glaucoma are not contraindications for Propranolol.
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