A new mother has some questions about phenylketonuria (PKU). Which of the following statements made by a nurse is not correct regarding PKU?
- A. A Guthrie test can check the necessary lab values.
- B. The urine has a high concentration of phenylpyruvic acid
- C. Mental deficits are often present with PKU
- D. The effects of PKU are reversible
Correct Answer: D
Rationale: Phenylketonuria (PKU) is an inherited disorder that increases the levels of phenylalanine (a building block of proteins) in the blood. If PKU is not treated, phenylalanine can build up to harmful levels in the body, causing intellectual disability and other serious health problems. The signs and symptoms of PKU vary from mild to severe. The most severe form of this disorder is known as classic PKU. Infants with classic PKU appear normal until they are a few months old. Without treatment, these children develop a permanent intellectual disability. Seizures, delayed development, behavioral problems, and psychiatric disorders are also common. Untreated individuals may have a musty or mouse-like odor as a side effect of excess phenylalanine in the body. Children with classic PKU tend to have lighter skin and hair than unaffected family members and are also likely to have skin disorders such as eczema. The effects of PKU stay with the infant throughout their life (via Genetic Home Reference).
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The key to the prevention of a pandemic influenza is:
- A. Early detection
- B. Early antibiotic treatment
- C. Vaccination of at-risk populations
- D. Isolation of suspected cases
Correct Answer: A
Rationale: The key to preventing a pandemic influenza is early detection. Detecting influenza cases early allows for timely public health responses to limit the spread of the virus. Early detection helps in implementing measures such as isolation, treatment, and vaccination to prevent the development of a full-blown pandemic. Antibiotics are not effective against influenza viruses, so early antibiotic treatment is not the key to prevention. While vaccination of at-risk populations is important in controlling the spread of influenza, early detection is crucial as it allows for timely implementation of vaccination strategies. Isolation of suspected cases is a containment measure rather than a prevention strategy; the key to prevention lies in early detection to stop the spread before it becomes a pandemic.
A nurse is assigned to care for a deaf client. During her lunch hour, she visits the hospital library and reads more about deaf culture in order to better provide appropriate care for her client. This action is an example of:
- A. Cultural knowledge
- B. Cultural noise
- C. Cultural diversity
- D. Cultural divide
Correct Answer: A
Rationale: Cultural knowledge involves seeking information and educating oneself about different cultural groups. In this scenario, the nurse is demonstrating cultural knowledge by learning more about deaf culture to improve the care provided to the deaf client. This proactive approach helps in understanding the client's background, beliefs, and communication preferences, leading to better outcomes. 'Cultural noise' and 'Cultural divide' are incorrect as they do not reflect the nurse's positive action of seeking knowledge to enhance care. 'Cultural diversity' is also incorrect as it does not accurately describe the nurse's specific action of acquiring knowledge about a particular culture.
While assessing a one-month-old infant, which of the findings does not warrant further investigation by the nurse?
- A. Abdominal respirations
- B. Inspiratory grunt
- C. Nasal flaring
- D. Cyanosis
Correct Answer: A
Rationale: Abdominal respirations in infants are considered normal due to the underdeveloped intercostal muscles. Infants rely more on their abdominal muscles to facilitate breathing since their intercostal muscles are not fully matured. Therefore, abdominal respirations do not typically require further investigation. Inspiratory grunt, nasal flaring, and cyanosis are findings that warrant additional assessment as they can indicate potential respiratory distress or other underlying health issues in infants. Inspiratory grunt may suggest respiratory distress, nasal flaring can be a sign of increased work of breathing, and cyanosis indicates poor oxygenation, all of which require prompt evaluation and intervention to ensure the infant's well-being.
Thrombolytic therapy is frequently used in the treatment of suspected stroke. Which of the following is a significant complication associated with thrombolytic therapy?
- A. Air embolism.
- B. Cerebral hemorrhage.
- C. Expansion of the clot.
- D. Resolution of the clot.
Correct Answer: B
Rationale: Cerebral hemorrhage is a significant complication associated with thrombolytic therapy in stroke treatment. Thrombolytic therapy aims to dissolve clots, but it increases the risk of bleeding, including cerebral hemorrhage. This risk is especially high when the therapy is administered quickly after a stroke, sometimes before confirming the type of stroke. Air embolism (Choice A) is not a common complication of thrombolytic therapy. Expansion of the clot (Choice C) and resolution of the clot (Choice D) are not expected outcomes of thrombolytic therapy; the therapy is specifically used to dissolve clots, not to expand or resolve them.
A patient with peripheral vascular disease is receiving discharge instructions. Which of the following information should be included?
- A. Walk barefoot whenever possible.
- B. Use a heating pad to keep feet warm.
- C. Avoid crossing the legs.
- D. Use antibacterial ointment to treat skin lesions prone to infection.
Correct Answer: C
Rationale: Patients with peripheral vascular disease should be advised to avoid crossing their legs as this can impede blood flow. Peripheral vascular disease, also known as arteriosclerosis obliterans, is primarily caused by atherosclerosis. Atherosclerosis results in the gradual progression of arterial occlusion due to the formation of atheromas. Crossed legs can further restrict blood flow, exacerbating the condition. Walking barefoot should be discouraged to prevent potential injuries to the feet. Using a heating pad can lead to burns and should be avoided to prevent thermal injuries. While using antibacterial ointment for skin lesions may be beneficial, it is not the priority instruction for patients with peripheral vascular disease.
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