Which bloodborne pathogen is the most virulent? (Choose the BEST answer.)

Correct Answer: A

Rationale: The correct answer is HCV (Hepatitis C Virus). Hepatitis C is considered the most virulent bloodborne pathogen, being 100 times more virulent than Hepatitis B. HPV (Human Papillomavirus) is a sexually transmitted infection but is not a bloodborne pathogen. HIV (Human Immunodeficiency Virus) affects the immune system but is not as virulent as Hepatitis C in terms of bloodborne transmission. HBV (Hepatitis B Virus) is less virulent compared to HCV in the context of bloodborne transmission.

Correct Answer: D

Rationale: The correct answer is to keep the car windows rolled up when in an unfamiliar environment. This action helps uphold safety precautions for the home health nurse. When visiting a new client in an unfamiliar area, it is essential to ensure personal safety. Keeping the car windows rolled up can prevent potential intruders or unwanted individuals from gaining access to the nurse while in the vehicle. This precaution is important for personal safety and security. Choice A, sending a text to the client to confirm the location of the house, is not directly related to the nurse's safety during the visit. While communication with the client is important, it does not directly address the nurse's safety. Choice B, leaving her purse and valuables on the seat in the car, poses a security risk. It is not advisable to leave valuables visible in the car, as it may attract thieves and compromise the nurse's safety. Choice C, asking the client to keep an extra set of keys, is more related to accessibility and convenience rather than the nurse's safety. While having an extra set of keys may be helpful, it does not directly address safety precautions for the nurse.

Correct Answer: C

Rationale: Bruising around the breasts and genitals should trigger concern for sexual abuse. Elder abuse is a growing problem in America, and nurses are uniquely positioned to recognize and intervene on behalf of vulnerable populations, such as the elderly. According to the National Center on Elder Abuse (NCEA), major types of elder abuse include physical abuse, sexual abuse, emotional or psychological abuse, neglect, abandonment, financial or material exploitation, and self-neglect. In this scenario, given Madge's age, history of dementia, and the presence of unexplained bruising in sensitive areas, sexual abuse must be considered as a major concern. Idiopathic thrombocytopenic purpura (ITP) is a platelet disorder that presents with excessive bruising and bleeding, but it is less likely in this case as the bruising pattern is suggestive of a different cause. Embolic stroke is a neurological condition that typically presents with sudden onset neurological deficits and is not related to the observed bruising. Nursing home-acquired pneumonia (NHAP) is a common issue in elderly residents but would not manifest as bruising in specific areas like the breasts and genitals.

Correct Answer: D

Rationale: Parents of newborn infants should use an approved car seat that has been installed facing backward in the back seat of the car. Securing infants in car seats, even from the first ride home from the hospital, promotes safety while transporting. While safety measures at home such as baby gates or outlet covers are important, they are not the priority safety measures until the baby is old enough to be mobile. The car seat is crucial for protecting the newborn during transportation, ensuring proper positioning and restraint in the event of sudden stops or accidents. Turning handles of pans on the stove inward, setting up a baby gate, and covering electrical outlets are important safety measures at home but are not as critical for the immediate safety of a newborn during transportation.

Correct Answer: A

Rationale: The National Fire Protection Agency (NFPA) uses a safety diamond to communicate the level of threat posed by a specific chemical. The blue diamond in the NFPA diamond system signifies potential health hazards associated with the use of that chemical. Choice B is incorrect because the blue diamond does not indicate anything about using water to extinguish fires. Choice C is incorrect as the NFPA diamond does not provide information on treating injuries. Choice D is also incorrect as the blue diamond does not suggest incineration upon disposal; it pertains to health hazards.

Correct Answer: B

Rationale: A 5-year-old child riding in a car should use a restraint system for safety. The Centers for Disease Control and Prevention recommend that children under 13 years should not ride in the front seat of a car due to safety concerns. For a 5-year-old child, a booster seat with a lap and shoulder belt in the back seat is the most appropriate choice. This setup ensures proper protection and restraint for the child's size and age. Choice A is incorrect because a 5-point restraint system facing backward is not suitable for a 5-year-old child in a car. Choice C is incorrect as a lap belt alone does not provide adequate protection for a child of this age. Choice D is incorrect as children should not be seated in the front seat, especially at this young age.

Correct Answer: B

Rationale: The xiphoid process is a small, cartilaginous extension at the inferior end of the sternum. Placing the hands improperly during the Heimlich maneuver too close to this process can result in it breaking off and potentially causing damage to internal organs. Choices A and C are incorrect because the manubrium of the sternum and the coccyx are not in the area where the hands would typically be placed during the Heimlich maneuver.

Correct Answer: A

Rationale: The Rule of Nines is used to assess the amount of body surface that has been burned. Most body areas are divided out based on 9%, with the exception of the genitalia, which is only 1%.

Correct Answer: A

Rationale: The correct answer is when the client suddenly complains of back pain and has chills. Signs of a transfusion reaction include back pain, chills, dizziness, increased temperature, and blood in the urine. These signs indicate a possible adverse reaction to the blood transfusion. Dependent edema in the extremities is not typically associated with a transfusion reaction. A seizure is not a common sign of a transfusion reaction unless it is due to severe complications. A decrease in heart rate to 60 bpm is not a typical sign of a transfusion reaction, but rather bradycardia may indicate other underlying conditions or medications.