A home health nurse is caring for a child who has Lyme disease. Which of the following is an appropriate action for the nurse to take?

Ensure the state health department has been notified.

Administer antitoxin.

Educate the family to avoid sharing personal belongings.

Assess for skin necrosis.

Answer and Explanation

The Correct Answer is A

The nurse should ensure the state health department has been notified of the child’s Lyme disease, as it is a reportable disease in most states. Reporting helps to monitor the incidence and prevalence of Lyme disease and to implement prevention and control measures.

Choice B is wrong because antitoxin is not used to treat Lyme disease.

Antitoxin is a substance that neutralizes the effects of a toxin, such as botulism or tetanus. Lyme disease is caused by a bacterium called Borrelia burgdorferi, which can be treated with antibiotics.

Choice C is wrong because Lyme disease is not transmitted by sharing personal belongings. Lyme disease is spread to humans by the bite of infected ticks that carry the bacterium. The risk of getting Lyme disease can be reduced by avoiding tick-infested areas, wearing protective clothing, using insect repellent, and removing ticks promptly.

Choice D is wrong because skin necrosis is not a common complication of Lyme disease.

Skin necrosis is the death of skin tissue due to lack of blood supply or infection. Lyme disease can cause a characteristic skin rash called erythema migrans, which is usually circular or oval and expands over time. Other possible signs and symptoms of Lyme disease include fever, headache, fatigue, joint pain, and neurological problems.

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Correct Answer is A

Explanation

Warfarin is a vitamin K antagonist that inhibits the synthesis of factors II, VII, IX, and X in the liver. These factors are part of the extrinsic and common pathways of coagulation, which are measured by the prothrombin time (PT) and the international normalized ratio (INR). The INR is a standardized way of reporting the PT that accounts for the variability of different reagents and instruments. The INR is used to monitor the therapeutic effect of warfarin and to adjust the dose accordingly. The target INR range depends on the indication for warfarin, but it is usually between 2 and 3 for most conditions.

Choice B is wrong because fibrinogen level is not affected by warfarin.

Fibrinogen is a precursor of fibrin, which forms the final step of the coagulation cascade.

Fibrinogen level can be decreased in conditions such as disseminated intravascular coagulation (DIC), liver disease, or severe bleeding.

Choice C is wrong because aPTT is not affected by warfarin.

aPTT measures the intrinsic and common pathways of coagulation, which are mainly dependent on factors VIII, IX, XI, and XII.

These factors are not inhibited by warfarin.

aPTT is used to monitor the effect of heparin, a direct antithrombin agent that inhibits thrombin and factor Xa.

Choice D is wrong because platelet count is not affected by warfarin.

Platelets are cell fragments that adhere to damaged blood vessels and form aggregates to initiate hemostasis.

Platelet count can be decreased in conditions such as immune thrombocytopenia (ITP), heparin-induced thrombocytopenia (HIT), or bone marrow suppression.

A. Instruct the client to avoid coughing during the procedure. B. Inform the client that he will be NPO for 6 hr prior to the procedure. C. Position the client on the affected side for 4 hr following the procedure. D. Place the client in the prone position during the procedure.

Correct Answer is A

Explanation

A thoracentesis is a procedure that involves inserting a needle into the pleural space to remove excess fluid or air. Coughing can increase the risk of pneumothorax (collapsed lung) or bleeding during the procedure.

Choice B is wrong because the client does not need to be NPO (nothing by mouth) for 6 hr prior to the procedure. There is no risk of aspiration during a thoracentesis.

Choice C is wrong because the client should be positioned on the unaffected side for 4 hr following the procedure. This allows the affected lung to re-expand and prevents fluid from accumulating in the pleural space again.

Choice D is wrong because the client should not be placed in the prone position during the procedure. The prone position makes it difficult to access the pleural space and can compromise breathing.

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A home health nurse is caring for a child who has Lyme disease. Which of the following is an appropriate action for the nurse to take?

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