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The nurse is caring for a client who is receiving heparin therapy. Which laboratory value should the nurse monitor to determine the effectiveness of the therapy?
- A. Prothrombin time (PT)
- B. Partial thromboplastin time (PTT)
- C. International normalized ratio (INR)
- D. Activated partial thromboplastin time (aPTT)
Correct Answer: C
Rationale: Rationale:
1. Heparin primarily affects the intrinsic pathway of coagulation.
2. International Normalized Ratio (INR) is used to monitor the effectiveness of anticoagulation therapy.
3. INR is more specific for monitoring heparin therapy compared to other options.
4. Prothrombin Time (PT) and Activated Partial Thromboplastin Time (aPTT) are not as accurate for heparin monitoring.
5. Partial Thromboplastin Time (PTT) is used to monitor heparin therapy, but INR is a more precise indicator of heparin's effect.
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The nurse is caring for a client who is receiving a continuous intravenous infusion of heparin. Which laboratory value should the nurse monitor to evaluate the effectiveness of the therapy?
- A. Platelet count
- B. Prothrombin time (PT)
- C. Partial thromboplastin time (PTT)
- D. Hemoglobin level
Correct Answer: C
Rationale: The correct answer is C: Partial thromboplastin time (PTT). PTT measures the effectiveness of heparin therapy by assessing the clotting time. With heparin being an anticoagulant, monitoring PTT helps ensure the client is within the therapeutic range to prevent clot formation. A - Platelet count assesses risk of bleeding, not heparin effectiveness. B - Prothrombin time (PT) is used to monitor warfarin therapy, not heparin. D - Hemoglobin level monitors for anemia, not heparin effectiveness.
A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?
- A. It dissolves blood clots
- B. It prevents the blood from clotting
- C. It thins the blood
- D. It decreases the risk of infection
Correct Answer: B
Rationale: The correct answer is B: It prevents the blood from clotting. Warfarin works as an anticoagulant by inhibiting the production of certain clotting factors in the liver. This prevents the formation of blood clots and reduces the risk of conditions like deep vein thrombosis or stroke. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones. Choice C is misleading as it does not actually "thin" the blood but affects its ability to clot. Choice D is unrelated to the mechanism of action of warfarin.
A client with type 1 diabetes mellitus reports feeling shaky and has a blood glucose level of 60 mg/dl. What action should the nurse take?
- A. Administer 15 grams of carbohydrate
- B. Administer a glucagon injection
- C. Provide a snack with protein
- D. Encourage the client to rest
Correct Answer: A
Rationale: The correct action is to administer 15 grams of carbohydrate because the client is experiencing hypoglycemia with a blood glucose level of 60 mg/dl. Carbohydrates will quickly raise the blood sugar level. Glucagon injection is used for severe hypoglycemia when the client is unconscious. Providing a snack with protein is not the immediate action needed to raise the blood sugar rapidly. Encouraging rest is not effective in treating hypoglycemia.
The nurse offers diet teaching to a female college student who was diagnosed with iron-deficiency anemia following her voluntary adoption of a lacto-vegetarian diet. What nutrients should the nurse suggest this client eat to best meet her nutritional needs while allowing her to adhere to a lacto-vegetarian diet?
- A. Drink whole milk instead of skim milk to enhance the body's production of amino acids
- B. Take vitamin K 10mg PO daily to enhance production of red blood cells
- C. Increase amounts of dark yellow vegetables such as carrots to fortify iron stores
- D. Combine several legumes and grains such as beans and rice to form complete proteins
Correct Answer: D
Rationale: The correct answer is D: Combine several legumes and grains such as beans and rice to form complete proteins. This is the best option because a lacto-vegetarian diet excludes meat but includes dairy products. Legumes and grains complement each other in terms of amino acid profiles, allowing the individual to obtain all essential amino acids needed for protein synthesis. This combination ensures the client gets adequate protein intake necessary for red blood cell production without consuming meat.
A: Drinking whole milk instead of skim milk does not enhance amino acid production. Skim milk contains the same amino acids as whole milk.
B: Taking vitamin K does not enhance red blood cell production. Iron is the key nutrient needed for red blood cell production.
C: Increasing dark yellow vegetables such as carrots does not provide a significant amount of iron to fortify iron stores compared to legumes and grains.
A nurse is planning care for a client who is newly diagnosed with diabetes mellitus. Which instruction should the nurse include in this client¢â‚¬â„¢s teaching plan?
- A. Avoid all forms of sugar
- B. Check blood glucose levels once a week
- C. Rotate insulin injection sites
- D. Monitor urine ketone levels
Correct Answer: C
Rationale: The correct answer is C: Rotate insulin injection sites. This instruction is crucial to prevent lipohypertrophy, which can lead to inconsistent insulin absorption. By rotating injection sites, the client ensures proper insulin absorption and prevents complications. Checking blood glucose levels once a week (B) is not frequent enough for proper diabetes management. Avoiding all forms of sugar (A) is an outdated approach, as moderation is key. Monitoring urine ketone levels (D) is not as reliable as blood ketone testing for assessing diabetic ketoacidosis risk.