Nokea
Which one of the following features is indicative of an abnormal labour pattern?
- A. Presence of the retraction ring
- B. Presence of the Bandl’s ring
- C. Cervical canal short and thin
- D. Vagina is warm and moist
Correct Answer: B
Rationale: The correct answer is B: Presence of the Bandl's ring. This is indicative of an abnormal labor pattern as it may suggest a uterine rupture, which is a serious complication. Bandl's ring is a constriction ring formed between the upper and lower uterine segments due to excessive uterine contractions. It can lead to fetal distress and necessitate immediate medical intervention.
A: Presence of the retraction ring is a normal phenomenon during labor, marking the boundary between the lower and upper uterine segments.
C: Cervical canal short and thin can be a normal variation in labor and does not necessarily indicate an abnormal pattern.
D: Vagina being warm and moist is a common physiological response during labor and does not provide information on the progress or abnormality of labor.
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Diabetes in pregnancy predisposes a mother to developing vulvovaginitis due to
- A. High acidity levels which favor growth of E. coli
- B. Low acidity levels which favor growth of candida albicans
- C. Existing chronic hypertension
- D. Lowered osmotic pressure
Correct Answer: B
Rationale: The correct answer is B: Low acidity levels which favor growth of candida albicans. During pregnancy, hormonal changes can lead to increased vaginal pH, creating a more alkaline environment that promotes the growth of candida albicans, causing vulvovaginitis. Choice A is incorrect as E. coli thrives in alkaline environments. Choice C, existing chronic hypertension, is unrelated to the development of vulvovaginitis. Choice D, lowered osmotic pressure, does not directly influence the growth of candida albicans.
While participating in sports, it is not uncommon for people to be subjected to sudden rotational injuries that result in the abrupt rotation of the cerebral cortex around the more fixed midbrain structures. This can interrupt input and outflow from the reticular activating system and result in what clinical phenomenon?
- A. Epidural hematoma
- B. Uncal herniation
- C. Concussion
- D. Contrecoup injury
Correct Answer: A
Rationale: The correct answer is A: Epidural hematoma.
1. Sudden rotational injuries can cause tearing of the middle meningeal artery, leading to an epidural hematoma.
2. The hematoma can compress the brain, disrupting the reticular activating system, causing altered consciousness.
3. Uncal herniation (B) involves herniation of the uncus, not rotation-related.
4. Concussion (C) is a mild traumatic brain injury, not directly related to rotational injuries.
5. Contrecoup injury (D) is when the brain impacts the opposite side of the skull due to sudden deceleration, not rotation-induced.
Hepatic encephalopathy is a clinical syndrome seen in patients with chronic liver disease its presentation may range from mild personality changes, to psychosis, to coma. The primary chemical mediators of hepatic encephalopathy include all of the following except
- A. Gamma-aminobutyric acid (GABA)
- B. Ammonia
- C. False neurotransmitters
- D. Serotonin
Correct Answer: B
Rationale: The correct answer is B: Ammonia. Ammonia is a primary chemical mediator of hepatic encephalopathy. In patients with chronic liver disease, the liver's ability to detoxify ammonia is compromised, leading to its accumulation in the bloodstream and subsequent neurotoxic effects causing encephalopathy. Gamma-aminobutyric acid (GABA), false neurotransmitters, and serotonin are all implicated in the pathophysiology of hepatic encephalopathy. GABA is involved in neurotransmission, false neurotransmitters are substances that disrupt normal neurotransmission, and serotonin levels are altered in hepatic encephalopathy.
The major causative organism of urinary tract infection during puerperium is:
- A. Staphylococcus pyogenes
- B. Anaerobic streptococci
- C. Clostridium welchii
- D. Escherichia coli
Correct Answer: D
Rationale: The correct answer is D: Escherichia coli. During puerperium, the most common causative organism of urinary tract infection is E. coli. This is because E. coli is a normal flora in the gastrointestinal tract and can ascend to the urinary tract due to factors like hormonal changes, reduced bladder tone, and trauma during delivery. Staphylococcus pyogenes (Choice A), Anaerobic streptococci (Choice B), and Clostridium welchii (Choice C) are not typically associated with urinary tract infections during puerperium. Staphylococcus pyogenes is more commonly known for causing skin infections, Anaerobic streptococci are not commonly implicated in urinary tract infections, and Clostridium welchii is associated with gas gangrene, not urinary tract infections.
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.