When a patient asks if he can keep the hot application on his leg all the time, the nurse reminds him that long-term heat can:
a. cause extreme vasoconstriction.
b. increase possibility of infection.
c. cause the blood pressure to increase.
d. damage epithelial cells.
D
Prolonged contact with heat can cause damage to the epithelial cells.
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The nurse is assessing a client who has dyspnea and considering the process of gas exchange. Which structural characteristic of capillaries best enables gas exchange at the cellular level?
A) Capillaries are one cell–layer thick. B) Capillaries form a complex network. C) Capillaries transport blood back to the heart. D) Capillaries are elastic structures.
The nurse notices that a school-age child stands up from the floor using both hands and knees to help him achieve a standing position. This finding is an indicator of which of the following muscular dystrophies?
1. Duchenne 2. Becker 3. Myotonic 4. Lumbar girdle
The nurse is collecting a "fractional collection" of urine. The nurse is reviewing the procedure for the necessary time frame for the specimen. What are the most common factional collection time segments?
A) 2 hours B) 4 hours C) 6 hours D) 8 hours
The physician orders blood coagulation tests to evaluate a client's blood-clotting ability. The nurse knows that such tests are important in assessing clients at risk for thrombi, such as those with a history of atrial fibrillation, infective endocarditis, prosthetic heart valves, or myocardial infarction. Which test is used to determine a client's response to oral anticoagulant drugs?
a. Bleeding time b. Platelet count c. Prothrombin time (PT) d. Partial thromboplastin time (PTT)