A nurse is caring for a client who has end-stage liver disease and is undergoing a paracentesis. Which of the following actions should the nurse take to evaluate the effectiveness of the procedure?

This is because shuffling gait is a common manifestation of pseudo-parkinsonism, which is a condition that mimics the symptoms of Parkinson’s disease due to the use of certain medications that block dopamine receptors, such as haloperidol. Pseudoparkinsonism can cause slowed movements, muscle stiffness, tremor, and postural instability.
Choice A. Nonreactive pupils are wrong because this is not a typical feature of pseudoparkinsonism or Parkinson’s disease.
Nonreactive pupils can be caused by other conditions, such as brain injury, drugs, or eye diseases.
Choice B. Serpentine limb movement is wrong because this is a characteristic of tardive dyskinesia, another drug-induced movement disorder that can result from the long-term use of dopamine receptor-blocking agents. Tardive dyskinesia causes involuntary movements of the face, tongue, and limbs that are often writhing or twisting.
Choice C. Smacking lips is wrong because this is also a sign of tardive dyskinesia, not pseudo-parkinsonism. Smacking lips is one of the orofacial movements that can occur in tardive dyskinesia due to abnormal muscle contractions.

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.