A nurse is caring for a client who reports xerostomia following radiation therapy to the mandible.
Which of the following is an appropriate action by the nurse?
Suggest rinsing his mouth with an alcohol-based mouth wash.
Instruct the client on the use of esophageal speech.
Offer the client saltine crackers between meals.
Provide humidification of the room air.
The Correct Answer is D
Provide humidification of the room air. This is because humidification can help moisten the oral mucosa and reduce the discomfort of xerostomia. Xerostomia is a condition of dry mouth caused by reduced or absent saliva flow, which can occur after radiation therapy to the head and neck area.
Choice A is wrong because rinsing the mouth with an alcohol-based mouth wash can irritate the oral tissues and worsen xerostomia. Alcohol can also dehydrate the mouth and reduce saliva production.
Choice B is wrong because esophageal speech is a method of voice restoration after laryngectomy, not a treatment for xerostomia.
Esophageal speech involves swallowing air into the esophagus and releasing it to create sound.
It has nothing to do with saliva flow or dry mouth.
Choice C is wrong because saltine crackers are dry and hard to swallow without adequate saliva.
They can also scratch the oral mucosa and cause pain or bleeding. Offering the client saltine crackers between meals can aggravate xerostomia and increase the risk of choking.
Normal ranges for saliva flow vary depending on the method of measurement, but generally, a stimulated saliva flow rate of less than 0.7 mL/min or an unstimulated saliva flow rate of less than 0.1 mL/min is considered indicative of xerostomia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is choice A. Measure gastric residual volumes every 4 hr.
This is because continuous enteral feedings through an NG tube can increase the risk of aspiration, which is the inhalation of food or fluids into the lungs. Measuring gastric residual volumes (GRV) can help monitor the tolerance and absorption of the feedings and prevent overfeeding. GRV is the amount of fluid aspirated from the stomach via an enteral tube to check for gastric emptying. The normal range of GRV is less than 200 ml.
Choice B is wrong because advancing the rate of the feeding every 2 hr can lead to overfeeding, abdominal distension, nausea, vomiting and diarrhea.
The rate of the feeding should be adjusted according to the client’s nutritional needs and tolerance.
Choice C is wrong because maintaining the head of the bed at a 20° angle is not enough to prevent aspiration. The head of the bed should be elevated at least 30° to 45° during and for at least one hour after feeding.
Choice D is wrong because flushing the NG tube with 30 mL 0.9% sodium chloride before and after medication is not related to continuous enteral feedings. This is a practice to prevent clogging of the tube and ensure proper delivery of medication. Flushing the tube with water before and after feeding is also recommended to maintain patency and hydration.
Correct Answer is A
Explanation
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:
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