Final answer:
Signs of overapplication of lindane (Kwell) include nausea and vomiting, drowsiness, and diaphoresis, indicating systemic toxicity and absorption through the skin.
Step-by-step explanation:
The signs of overapplication of lindane (Kwell), an anti-parasite medication, include various symptoms due to its potential toxicity. It is crucial for a patient to follow the nurse's instructions for application closely. When overapplied, lindane can lead to systemic effects due to absorption through the skin. The symptoms indicative of overapplication and systemic absorption include nausea and vomiting, which are due to irritation of the gastrointestinal lining and central nervous system effects, as well as drowsiness, which represents central nervous system depression. While eye irritation could be related to direct contact, it is not a systemic effect of overapplication. Diaphoresis, or excessive sweating, is another sign that indicates that the body is absorbing too much of the substance and trying to eliminate it. In agrarian or industrial settings, exposure can occur through inhalation of pesticide fumes in environments with poor ventilation, indicating that the effects can compound with topical exposure.