Nokea
The term used to describe pure fetal blood loss that occurs following a ruptured vasa praevia is
- A. Fetal extra-versation
- B. Fetal exsanguination
- C. Velamentous bleeding
- D. Fetal hemorrhage
Correct Answer: B
Rationale: The correct answer is B: Fetal exsanguination. This term accurately describes the process of pure fetal blood loss following a ruptured vasa praevia. Exsanguination refers to severe blood loss leading to death. In this context, it specifically denotes the loss of fetal blood due to the rupture of vasa praevia, which can be fatal for the fetus.
A: Fetal extra-versation is not a recognized medical term and does not accurately describe the scenario presented in the question.
C: Velamentous bleeding refers to a condition where fetal blood vessels are unprotected by the umbilical cord and run through the amniotic membranes, not specifically related to ruptured vasa praevia.
D: Fetal hemorrhage is a general term for fetal blood loss and does not specifically address the situation of pure fetal blood loss following a ruptured vasa praevia.
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The AGACNP is evaluating a patient who reportedly fell down a flight of steps. Her history is significant for several emergency room visits, but she denies any significant medical conditions. Some documentation in her chart indicates that she may have been subjected to physical abuse. Today she presents with a periorbital ecchymosis of the left eye and swelling in the left side of the face. Her neurologic examination is within normal limits. Which head imaging study would be most useful in assessing for findings consistent with a history of abuse?
- A. Radiographs
- B. CT scan without contrast
- C. MRI
- D. PET scan
Correct Answer: A
Rationale: The correct answer is A: Radiographs. Radiographs, specifically skull X-rays, are most useful in assessing for findings consistent with a history of abuse in this case. Radiographs can detect fractures, such as skull fractures or facial bone fractures, which are common in cases of physical abuse. These fractures may not always be clinically evident but can be identified on X-rays.
Explanation of other choices:
B: CT scan without contrast - While a CT scan can provide detailed imaging of the head, it may not be necessary in this case as the patient's neurologic examination is within normal limits. Also, radiographs are more cost-effective and can detect fractures effectively.
C: MRI - MRI is not typically used as the first-line imaging modality for suspected head trauma due to its cost and time-consuming nature. Radiographs are more appropriate for initial evaluation.
D: PET scan - PET scans are used to detect metabolic activity in tissues and are not typically indicated for assessing acute traumatic injuries like fractures associated with
The AGACNP is covering an internal medicine service and is paged by staff to see a patient who has just pulled out his ET tube. After the situation has been assessed, it is clear that the patient will go into respiratory failure and likely die if he is not reintubated. The patient is awake and alert and is adamant that he does not want to be reintubated. The AGACNP is concerned that there is not enough time to establish a DNRthe patient needs to be reintubated immediately and already is becoming obtunded. Which ethical principles are in conflict here?
- A. Veracity and beneficence
- B. Beneficence and nonmalfeasance
- C. Autonomy and beneficence
- D. Justice and autonomy
Correct Answer: A
Rationale: The correct answer is A: Veracity and beneficence. Veracity refers to truthfulness, and the AGACNP is facing a conflict between being honest with the patient about the need for reintubation (veracity) and providing beneficence by ensuring the patient receives necessary medical care to prevent harm. The patient's autonomy and right to make decisions are not directly in conflict since the patient is conscious, and autonomy is respected by honoring the patient's wishes. Justice is also not in conflict here as it does not pertain to the immediate ethical dilemma of reintubation. Autonomy and beneficence are not in direct conflict as the patient's autonomy is being respected by allowing them to make an informed decision. Nonmalfeasance is not directly applicable in this scenario.
A patient with chronic hepatic encephalopathy is being discharged home. Discharge teaching centers upon long-term management strategies to prevent ammonia accumulation. Teaching for this patient includes instruction about
- A. Lactulose taken 20 g PO daily
- B. Spironolactone taken 100 mg PO daily
- C. Protein intake of 50 g daily
- D. Zolpidem taken 10 mg PO qhs.
Correct Answer: C
Rationale: The correct answer is C: Protein intake of 50 g daily. In hepatic encephalopathy, reducing protein intake is crucial to prevent ammonia accumulation. Protein breakdown in the body leads to ammonia production, which worsens encephalopathy symptoms. Limiting protein intake to 50g daily helps decrease ammonia formation. Lactulose (choice A) is used to reduce ammonia absorption in the gut. Spironolactone (choice B) is a diuretic used to treat fluid retention in liver disease. Zolpidem (choice D) is a sedative and not related to managing ammonia accumulation in hepatic encephalopathy. Therefore, choices A, B, and D are incorrect for long-term management of ammonia accumulation in hepatic encephalopathy.
T. S. is a 31-year-old female who is admitted following a catastrophic industrial accident. She had multiple injuries, and after a 10-day hospital stay that included several operations and attempts to save her, she is declared brain dead. She had an organ donor notation on her drivers license. Which of the following circumstances precludes her from serving as a liver donor?
- A. Encephalopathy
- B. Hepatitis C infection
- C. A long history of alcohol use
- D. Biliary cirrhosis
Correct Answer: C
Rationale: The correct answer is C: A long history of alcohol use. In this case, T. S. is brain dead and has a donor notation. However, a long history of alcohol use can lead to liver damage, making her liver unsuitable for donation. Encephalopathy (A) is a brain disorder but does not necessarily impact liver suitability. Hepatitis C infection (B) can affect the liver, but it doesn't automatically disqualify someone from being a donor. Biliary cirrhosis (D) refers to a specific liver condition, but it does not preclude someone from being a liver donor unless it has severely damaged the liver beyond use.
A characteristic of monozygotic twins is that
- A. They are always of the same sex
- B. They share a similar fingerprint pattern
- C. They have different blood groups
- D. Superfetation is a common finding
Correct Answer: A
Rationale: The correct answer is A: They are always of the same sex. This is because monozygotic twins, also known as identical twins, develop from a single fertilized egg that splits into two embryos. As a result, they share the same genetic material and are always of the same sex.
Choice B is incorrect because fingerprint patterns are not determined by genetics and can vary even between identical twins. Choice C is incorrect because monozygotic twins share the same blood type since they have the same genetic makeup. Choice D is incorrect as superfetation, the occurrence of multiple pregnancies in the same uterus but from different ovulations, is extremely rare and not a common finding in monozygotic twins.