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A patient with a severe bacterial infection has elevated levels of C-reactive protein (CRP) in their blood. Which of the following functions does CRP primarily serve during the acute phase response?
- A. Opsonization of pathogens
- B. Activation of complement system
- C. Phagocytosis of pathogens
- D. Neutralization of toxins
Correct Answer: B
Rationale: During the acute phase response, C-reactive protein (CRP) primarily serves to activate the complement system. CRP binds to phosphocholine on the surface of pathogens, allowing for the activation of the classical pathway of the complement system. This leads to the recruitment of immune cells, opsonization of pathogens, and enhancement of phagocytosis. The activation of the complement system by CRP plays a crucial role in the host defense against infections, aiding in the elimination of pathogens and the resolution of inflammation.
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Which is not a correct statement regarding record-keeping?
- A. Failure to do it could be evidence of professional liability
- B. It is an optional task to be done when circumstances allow.
- C. It is a tool in professional practice that helps provide quality care.
- D. It is part of the professional duty of the nurse.
Correct Answer: B
Rationale: Record-keeping is not an optional task; it is a critical aspect of professional nursing practice. As a nurse, maintaining accurate and timely records is essential for providing quality care, ensuring legal and ethical standards are met, and promoting patient safety. Failure to keep thorough records can lead to serious consequences such as compromising patient care, violating regulations, and even facing legal consequences. Thus, record-keeping should be seen as a mandatory part of the professional duty of nurses rather than an optional task that can be done when circumstances allow.
A patient presents with sudden-onset, painless vision loss in the right eye. Fundoscopic examination reveals a cherry-red spot at the macula and attenuated retinal vessels. Which of the following conditions is most likely responsible for this presentation?
- A. Central retinal artery occlusion
- B. Central retinal vein occlusion
- C. Retinal detachment
- D. Acute angle-closure glaucoma
Correct Answer: A
Rationale: The patient's presentation of sudden-onset, painless vision loss in the right eye, along with a cherry-red spot at the macula and attenuated retinal vessels, is classic for central retinal artery occlusion (CRAO). In CRAO, there is a sudden blockage of the central retinal artery, leading to ischemia of the retina. The cherry-red spot represents the preserved choroid blood flow against the ischemic retina. The attenuated retinal vessels are a result of decreased blood flow in the retinal circulation. This condition is considered an ophthalmic emergency and requires immediate evaluation and management to prevent permanent vision loss.
As a whole health education in public helath aims the __________.
- A. Transfers information
- B. Make life changes
- C. Better health opportunities
- D. Change personality
Correct Answer: C
Rationale: Whole health education in public health aims to provide individuals and communities with opportunities to improve their overall health and well-being by promoting healthy behaviors, creating supportive environments, and offering resources for prevention and early intervention. This approach focuses on empowering people to make informed choices that lead to better health outcomes and reduce the risk of developing diseases such as hypertension. By increasing access to healthcare services, promoting healthy lifestyles, and addressing underlying social determinants of health, public health education seeks to create better health opportunities for everyone in the community.
During the postpartum assessment, a new mother reports experiencing mild cramping and uterine contractions while breastfeeding. What physiological process is responsible for these symptoms?
- A. Prolactin release
- B. Oxytocin release
- C. Estrogen surge
- D. Progesterone withdrawal
Correct Answer: B
Rationale: Oxytocin release is responsible for the mild cramping and uterine contractions experienced by the new mother while breastfeeding. When a baby suckles at the breast, it stimulates nerve endings that signal the release of oxytocin from the posterior pituitary gland. Oxytocin is a hormone that plays a crucial role in stimulating the contraction of the uterine muscles, helping the uterus to contract back to its pre-pregnancy size. This process, known as uterine involution, is essential for postpartum recovery and preventing excessive bleeding. Therefore, the new mother's experience of mild cramping and uterine contractions while breastfeeding is a normal physiological response mediated by the release of oxytocin.
Which assessment finding would lead the nurse to suspect a postpartum hemorrhage? Blood loss of _____.
- A. less than 300 ml/24 hours
- B. more than 400 ml/24 hours
- C. less than 200 ml/2 hours
- D. more than 500 m2/24 hours
Correct Answer: D
Rationale: Postpartum hemorrhage is defined as a blood loss of more than 500 ml within the first 24 hours after vaginal delivery or more than 1000 ml following a cesarean delivery. Excessive bleeding can lead to hypovolemic shock and can be life-threatening if not promptly addressed. Therefore, a blood loss of more than 500 ml/24 hours would lead the nurse to suspect a postpartum hemorrhage and prompt further assessment and intervention.