A nurse in a provider’s office is caring for a client who asks about using acupuncture to manage his osteoarthritis pain.

The nurse should identify which of the following conditions as a contraindication for receiving this treatment?

The correct answer is Choice d. Positioning both hands on the grips with his elbows slightly flexed.

Choice A rationale:

• Moving both crutches with the stronger leg forward first is incorrect for a three-point gait.This describes a two-point gait,which is used when a client can bear weight on both legs.In a three-point gait,the client bears weight on the unaffected leg and the crutches,not the stronger leg.
• This action would put excessive weight on the affected leg and could potentially compromise healing or cause further injury.

Choice B rationale:

• Supporting his body weight while leaning on the axillary crutch pads is also incorrect.This can lead to nerve damage in the armpits and should be avoided.
• The weight should be distributed through the hands and wrists,not the armpits.

Choice C rationale:

• Stepping with his affected leg first when going up stairs is incorrect and potentially dangerous.The client should lead with the stronger leg when going up stairs to maintain balance and control.

Choice D rationale:

• Positioning both hands on the grips with his elbows slightly flexed is the correct action for using crutches with a three-point gait.This allows for proper weight distribution,balance,and control of the crutches.
• It also helps to prevent fatigue and strain in the arms and shoulders.

Key points to remember about the three-point gait:

• Weight is borne on the unaffected leg and the crutches,not the affected leg.
• The crutches and the unaffected leg move forward together,followed by the affected leg.
• The client should look ahead,not down at their feet.
• The client should take small,even steps.
• The client should rest as needed.

The correct answer is choice A. INR.

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.

Normal ranges:

• INR: 0.8-1.2
• Fibrinogen: 200-400 mg/dL
• aPTT: 25-35 seconds
• Platelet count: 150-450 x 10^9/L References: