Nokea
Which of the following drugs has a therapeutic effect that increases cardiac output and slows heart rate?
- A. Heparin
- B. Alprazola
- C. Digoxin
- D. Levothyroxine
Correct Answer: C
Rationale: Digoxin is a medication commonly used to treat heart failure and certain types of irregular heartbeats. It works by increasing the force of contraction of the heart muscle, thereby increasing cardiac output. Additionally, digoxin also has the ability to slow down the heart rate, making it helpful in conditions such as atrial fibrillation. Heparin is an anticoagulant medication used to prevent blood clot formation, while Alprazolam is a benzodiazepine used to treat anxiety disorders. Levothyroxine is a thyroid hormone replacement medication to treat hypothyroidism. None of these drugs have the therapeutic effects of increasing cardiac output and slowing heart rate like digoxin.
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Serious adverse effects of oral contraceptives include:
- A. Increase in skin oil followed by acne.
- B. Headache and dizziness.
- C. Early or mid-cycle bleeding.
- D. Thromboembolic complications.
Correct Answer: D
Rationale: Thromboembolic complications, such as deep vein thrombosis and pulmonary embolism, are serious adverse effects of oral contraceptives. These occur due to the estrogen component, which increases the risk of blood clots. While headaches, dizziness, and breakthrough bleeding are common side effects, they are not as severe as thromboembolic events.
Which patient-teaching instructions are appropriate for a patient taking an antidysrhythmic drug? (Select all that apply.)
- A. Do not chew or crush extende
- B. release forms of medication.
- C. Take the medication with food if gastrointestinal distress occurs.
- D. If a dose is missed, the missed dose should be taken along with the next dose that is due to be taken.
Correct Answer: A
Rationale: A. Do not chew or crush extended-release forms of medication. This is an appropriate instruction because chewing or crushing extended-release forms of medication can alter their intended time-release action, leading to an overdose or underdose.
Which of the following medications would you administer for an overdose of acetaminophen?
- A. Naloxone
- B. Vitamin K
- C. Acetylcysteine
- D. Atropine
Correct Answer: C
Rationale: Acetylcysteine is the antidote for an acetaminophen overdose. Acetaminophen overdose can cause liver damage due to its toxic metabolite buildup in the liver. Acetylcysteine works by replenishing glutathione, which helps in detoxifying the toxic metabolite of acetaminophen. Administering acetylcysteine within 8-10 hours of the overdose is crucial in preventing severe liver damage and improving the patient's outcome. Naloxone is used for opioid overdose, Vitamin K for treating specific types of bleeding disorders, and Atropine for drug poisoning or certain types of poisoning, but they are not indicated for an acetaminophen overdose.
The patient accidentally takes too much of the prescribed warfarin (Coumadin) and is readmitted to the hospital with bleeding. Which drug can the nurse anticipates administrating?
- A. Protamine sulfate
- B. Alteplase (Activase, Cathflo Activas
- D. Reteplase (Retavas
Correct Answer: D
Rationale: Warfarin, also known as Coumadin, is an anticoagulant medication that works by inhibiting the production of clotting factors in the liver, specifically factors II, VII, IX, and X. In the event of warfarin overdose, which can lead to excessive bleeding, the antidote is vitamin K. Vitamin K promotes the production of these clotting factors and helps reverse the effects of warfarin. Therefore, in this situation, the nurse can anticipate administering vitamin K to the patient to help stop the bleeding caused by the excess warfarin in the system.
Barium enema is a drug used for :
- A. diagnosis;
- B. prevention;
- C. contraception;
- D. stimulation ;
Correct Answer: A
Rationale: Barium enema is a diagnostic imaging test used to examine the large intestine (colon and rectum). It involves the administration of a contrast material containing barium into the colon through the rectum, followed by X-rays to produce clear images of the colon's lining. This procedure helps in the diagnosis of various conditions such as colon polyps, diverticulosis, colorectal cancer, and inflammatory bowel disease. Therefore, barium enema is primarily used for diagnostic purposes, not for prevention, contraception, stimulation, or treatment of conditions.