A nurse is reporting a client’s laboratory tests to the provider to obtain a prescription for the client’s daily warfarin.
Which of the following laboratory tests should the nurse plan to report to obtain the prescription for the warfarin?

INR.

Fibrinogen level.

aPTT.

Platelet count.

Answer and Explanation

The Correct Answer is A

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.

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Correct Answer is C

Explanation

This is because a peak flow meter measures how fast you can push air out of your lungs when you blow out as hard and as fast as you can. This is called peak expiratory flow rate (PEFR) or peak expiratory flow (PEF). It shows how open the airways are in the lungs and can help detect early signs of worsening asthma.

Choice A is wrong because maintaining a semi-Fowler’s position during testing is not necessary. You can sit or stand up straight, but make sure you do it the same way each time.

Choice B is wrong because placing tongue on the mouthpiece of the meter can block the air flow and affect the accuracy of the measurement. You should close your lips tightly on the mouthpiece instead.

Choice D is wrong because recording the average of the readings is not recommended.

You should record the highest of the three readings on a sheet of paper, calendar or in your asthma diary. This is your daily peak flow.

Normal ranges for peak flow vary depending on age, height, gender and race. You can use a chart or calculator to find out your predicted normal peak flow based on these

factors. However, it is more important to find out your personal best peak flow by performing peak flow testing twice a day for two weeks when your asthma is under good control. Your personal best peak flow will be used to create your asthma action plan with your healthcare provider.

A. Hypertension. B. Hypothyroidism. C. Obesity. D. Herpes zoster.

Correct Answer is D

Explanation

Herpes zoster is a contraindication for receiving acupuncture treatment because it is an infectious skin disorder that can be transmitted by needles or contact with the affected area. Acupuncture should not be performed on areas of skin that are inflamed, ulcerated, or have sensory deficits.
Choice A is wrong because hypertension is not a contraindication for acupuncture. However, some caution is advised when needling points that may lower blood pressure, such as LI 4, LI 11, ST 36, and SP 6.
Choice B is wrong because hypothyroidism is not a contraindication for acupuncture. In fact, some studies suggest that acupuncture may have beneficial effects on thyroid function and symptoms of hypothyroidism.
Choice C is wrong because obesity is not a contraindication for acupuncture.
Acupuncture may help with weight loss by regulating appetite, metabolism, and hormones.
Some of the absolute contraindications for acupuncture include pregnancy (especially certain points that may induce labor or abortion), medical and surgical emergencies, malignant tumors, bleeding disorders, and the use of a demand pacemaker. Some of the relative contraindications include drug or alcohol intoxication, lack of consent, immune deficiency, abnormal heart valves, and fear of needles.

Normal ranges for blood pressure are 120/80 mmHg or lower for systolic and diastolic pressure respectively.
Normal ranges for thyroid-stimulating hormone (TSH) are 0.4 to 4.0 mIU/L. Normal ranges for body mass index (BMI) are 18.5 to 24.9 kg/m2.

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System	Findings
General	Adult child accompanying parent reports decline in client, expressing concern over memory and thought process, appetite, and self-care. Adult child states. "My sibling and I hired help at home for my parent. We thought that would help but it has not. I found the title to the car today, signed over to me."
Physical	Client makes poor eye contact, speaks in a monotone voice, and has a lack of facial expression. Client reports sleeping 7 hr a night and getting up "once or twice per night to go to the bathroom." Client reports not wanting to eat anymore. Client's child reports their parent has lost about 8 lb in the past month. Heart rate 68/min
Affect	Client says. "Why don't you just leave me? I am of no use.”

A nurse is reporting a client’s laboratory tests to the provider to obtain a prescription for the client’s daily warfarin. Which of the following laboratory tests should the nurse plan to report to obtain the prescription for the warfarin?

Nursing Test Bank

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A nurse is reporting a client’s laboratory tests to the provider to obtain a prescription for the client’s daily warfarin.
Which of the following laboratory tests should the nurse plan to report to obtain the prescription for the warfarin?