Nokea
Heparin is classified under what class?
- A. Laxative
- B. ACE inhibitor
- C. Anti-convulsant
- D. Antithrombotic
Correct Answer: D
Rationale: Heparin is classified as an antithrombotic agent. It is a medication that helps prevent blood clot formation by inhibiting the activity of certain clotting factors in the blood. Heparin is commonly used in the treatment and prevention of conditions such as deep vein thrombosis, pulmonary embolism, and during certain medical procedures to prevent clot formation. It is not classified as a laxative, ACE inhibitor, or anti-convulsant based on its mechanism of action and therapeutic use.
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A patient who has been anticoagulated with warfarin (Coumadin) has been admitted for gastrointestinal bleeding. The history and physical examination indicates that the patient may have taken too much warfarin. The nurse anticipates that the patient will receive which antidote?
- A. Vitamin E
- B. Vitamin K
- C. Protamine sulfate
- D. Potassium chloride
Correct Answer: B
Rationale: Vitamin K is the antidote for warfarin (Coumadin) toxicity. Warfarin is a vitamin K antagonist that inhibits the synthesis of vitamin K-dependent coagulation factors (II, VII, IX, X) in the liver. In cases of excessive anticoagulation and bleeding, administering vitamin K can help reverse the effects of warfarin by replenishing the depleted vitamin K-dependent clotting factors. Vitamin K helps the liver produce clotting factors, thereby promoting the clotting process and reversing the excessive anticoagulant effects of warfarin. Other options mentioned, such as Vitamin E, Protamine sulfate, and Potassium chloride, are not appropriate antidotes for warfarin toxicity.
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.
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.
A nurse is caring for a patient who is taking Digoxin. The nurse should instruct the patient to monitor and report which of the following adverse e昀昀ects? ( select all the apply)
- A. Fatigue
- B. Constipation
- C. Anorexia
- D. Rash
Correct Answer: A
Rationale: A. Fatigue: Digoxin, a medication commonly used to treat heart conditions, can cause side effects such as fatigue. Patients taking Digoxin should monitor and report any unusual fatigue or weakness to their healthcare provider.
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.