Within six months of effectively using the antibiotic methicillin to treat s. Aureus infections in a community, all new infections were caused by mrsa; a multidrug resistant s. Aureus. How can this result best be explained?.

Answers

Answer 1

The best answer to this result is that some drug-resistant bacteria were already present at the start of the treatment and natural selection increased their frequency.

Antibiotic resistance in bacteria can be brought on via mutations. Antibiotic treatment does not kill resistant bacteria, and they can reproduce naturally. Bacteria may grow quickly, proliferate, and be very numerous. One cell of a bacterium divides into two cells when it multiplies. The DNA in the bacterium's chromosome must be duplicated twice, once for each cell, before it may divide. Every time the bacterium undergoes this procedure, there is a possibility (or risk, depending on the outcome) that mistakes, or so-called mutations, will happen. These mutations can appear anywhere in the DNA and are random. External sources like radiation or toxic substances can also cause mutations.

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Related Questions

_____ generally refers to the use of prescribed drugs in greater amounts than, or for purposes other than, those prescribed by a physician or dentist.

Answers

Answer: Drug misuse

What baseline levels should you perform before initiating an anti-adhd medication?

Answers

Explanation:

Base line methods include: Blood pressure, pulse, blood glucose and an Electrocardiogram (EKG). These are the necessary tests

26 weeker is not breathing what’s the next step

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Answer:

Next you are going to check if the airway is blocked and look for a pulse. If airway is clear then you are going to perform CPR giving 15 two finger compressions with two breaths if they do not have a DNR in place. If the airway is blocked you will then perform the heimlich maneuver giving 5 back thrushes and 5 chest compressions

Explanation:

When drawing blood on a patient, with which of the patient's body systems does the
equipment come in contact?

Answers

When drawing blood on a patient, with venipuncture of the patient's body systems  the equipment come in contact.

A phlebotomist aims to obtain blood samples,  most commonly done through the venous system via venipuncture,  one of the most common invasive procedures  in modern medicine.    

Venipuncture sampling. fingertip sampling.  phlebotomy is used to withdraw blood from a donor for a variety of therapeutic purposes. Blood draws or blood draws usually involve drawing blood and come in a variety of forms. It is also a general term for drawing blood  for laboratory analysis. Three common blood collection methods are: arterial sampling. Venipuncture sampling.    

Venipuncture is the most common method of drawing blood in adult patients. Sampling is done from  superficial veins of the upper extremities, commonly the median cubital vein. This vein is close to the skin and does not have many large nerves nearby. This reduces patient pain and discomfort.

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A 78-year-old man is admitted to the emergency department (ed) with bradycardia resulting from overdose of donepezil. the nurse knows that the ed is likely to order which medication?

Answers

The answer is Atropine

The answer should be Atropine

The school nurse sees a child who has had an absence seizure. which characteristics are typical of this type of seizure?

Answers

The school nurse sees a child who has had an absence seizure. Alterations in consciousness that last seconds are typical of this type of seizure.

Briefing :

Absence seizures are characterized by brief changes in awareness lasting only a few seconds.

Which type of seizures involves a loss of consciousness?

Seizures that affect entire brain are known as generalized seizures. These seizures arise as a result of aberrant brain activity that appears quickly on both sides of the brain. A person loses consciousness and may fall during this type of seizure.

What does an absence seizure look like?

For a few seconds, someone experiencing an absence seizure may appear to be looking blankly into space. Then there is a rapid return to normal attentiveness. This sort of seizure rarely causes bodily harm.

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Cefotaxime injection 1g tds×1/52..what is the total dose to be dispensed

Answers

Answer:

Give brainlist pls

Explanation:

Adults and children over 12 years in general receive 1 g Cefotaxime every 12 hours. In severe cases, the daily dose can be increased up to 12 g. Daily doses up ...


Which of the following are considered bloodborne pathogens?
Select one:
a. Hepatitis B
b. Hepatitis C
c. Human immunodeficiency virus (HIV)
d. All of the above

Answers

D because bloodborne pathogens are microorganisms that cause disease and are present in human blood.

Describe first and second intention healing and give an example of each.

Answers

The first intention of healing is when the doctor closes the wound with stitches or staples to let it heal. The second intention healing is when the wound remains open to healing itself.

What is second intention healing?

The second intention of healing is when the doctor does not close the wound and remain it open to heal the bottom itself.

When the doctor uses stitches or staples to close the wound and allow it to heal, this is the first step in the healing process. When the wound is still capable of healing itself, this is known as the second intention healing.

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Within six months of effectively using the antibiotic methicillin to treat s. Aureus infections in a community, all new infections were caused by mrsa; a multidrug resistant s. Aureus. How can this result best be explained?.

Answers

Some drug-resistant microorganisms were present at the outset of treatment, and their frequency grew due to natural selection.

Staphylococcus aureus :

Staphylococcus aureus is a Gram-positive spherically shaped bacterium that belongs to the Bacillota and is a common member of the body's microbiota, commonly found in the upper respiratory tract and on the skin.

What disease does S. aureus cause?

It is the most common cause of skin and soft tissue infections like abscesses (boils), furuncles, and cellulitis. Although the majority of staph infections are minor, S. aureus can cause serious infections such as bloodstream infections, pneumonia, and bone and joint infections.

How do you get Staphylococcus aureus?

These bacteria are spread through direct contact with an infected person, through the use of a contaminated object, or through inhaling infected droplets distributed by sneezing or coughing.  Although skin infections are common, bacteria can move through the bloodstream and attack distant organs.

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On assessment, the nurse notes that the patient is dyspneic and crackles are audible on lung auscultation, and that the patient has gained 1. 8 kg over the past 24 hours. What nursing diagnostic label do these data suggest?.

Answers

Answer:

Excessive fluid - heart workup may be in order

Explanation:

The HIV virus is ---- complex and there are many unknowns about how it operates and how people's bodies react to it.

Answers

The correct word to fill the given blank will be extremely.

HIV is an extremely complex virus.

The two Lentivirus species that infect humans are the human immunodeficiency viruses (HIV). Lentiviruses are a subclass of retroviruses. They eventually lead to acquired immunodeficiency syndrome (AIDS), a disorder in which the immune system gradually fails, allowing malignancies and life-threatening opportunistic infections to proliferate.The HIV virus targets the immune system of the body. Important immune system components include helper T cells (particularly CD4+ T cells), macrophages, and dendritic cells are all infected by HIV.AIDS can develop from HIV if it is not treated.There isn't a cure that works right now. People who contract HIV are permanently infected.But HIV can be managed with the right medical attention. People with HIV can have long, robust lives if they receive adequate HIV therapy.

Hence, HIV is an extremely complex virus.

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A client admitted to the hospital after an accident has clear drainage oozing from the ear. Which action would the nurse take?

Answers

Answer:

I would say test for glucose and apply sterile dressing

Explanation:

A number of chemical treatments cause microtubules to fall apart. Colchicine is one such drug. What would happen if a dividing cell was treated with colchicine?.

Answers

Cells will still enter the cell cycle, but will be arrested in metaphase and can not enter anaphase

Federal regulations (21 CFR 50.20 and 45 CFR 46.116) state that the information given in the consent process must be:

Answer: In language understandable to the subject

Answers

Federal regulations (21 CFR 50.20 and 45 CFR 46.116) state that the information given in the consent process must be in language understandable to the subject and require that legally valid informed permission be obtained before any researcher uses a human being as a subject in research.

Participants must be told in writing or verbally about the main goal of the research project and any processes they will have to go through.

Participants must also be made aware of any dangers or advantages involved with the study, as well as their rights to the study (such as voluntary participation, safeguarding anonymity or secrecy, privacy, etc.).

Sometimes it is necessary to acquire IRB permission in order to forego getting written consent or to change the conditions of consent. The IRB will choose and approve the sort of consent that is appropriate for your research.

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You will use the entire 1g contained in Powder-C. Does it matter how much diluent you use to dissolve the powder? Why or why not?

Answers

In this case, 1 gram doesn't seem much, however, it does matter howmuch diluent used to dissolve the powder because of the level ofviscousity/density.

Yes, it matters how much diluent we use to dissolve the powder, however, it's not much if we use the full 1g that the powder contains. The level of density really affects how much diluent is used to dissolve the powder.

What is diluent?

According to the label's reconstitution instructions, the powder must be reconstituted into a liquid form for injection by adding 2 mL of sterile water to the vial.

Normal saline (NS), sterile water for injection (SWFI), dextrose 5% in water (D5W), and lidocaine 1% plain are a few examples of diluents. Draw up the necessary diluent in a syringe and add it to the dry medicine once you've established the volume needed and the proper diluent.

Therefore, the level of density really affects how much diluent is used to dissolve the powder.

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Which processes do protists use in asexual reproduction?(can be more than one)
a process similiar to mitosis
schizogony
budding
binary fission

Answers

Answer:

budding, binary fission and a process similar to mitosis I believe

A __________ is the portion that replaces the natural tooth of a fixed bridge. clasp retainer pontic abutment

Answers

Answer:

A Pontic is the portion that replaces the natural tooth of a fixed bridge.

It is difficult to study the specialized abilities of the left and right cerebral hemispheres in the brains of normal individuals because.

Answers

It is difficult to study the specialized abilities of the left and right cerebral hemispheres in the brains of normal individuals because the two hemispheres share information quickly and completely.

What is the cerebellar hemisphere?

The cerebellar hemispheres are two divisions of the cerebellum on either side of the vermis that are the largest sections of the cerebellum. They are separated into two functional sections: lateral and medial.

What's the function of the cerebral hemisphere?

Somatosensory, motor, language, cognitive thought, memory, emotions, hearing, and vision are all controlled by the cerebrum. A deep longitudinal fissure divides the cerebrum into the left and right hemispheres; the corpus callosum keeps the two hemispheres in contact and communication with one another.

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Behavior therapy assumes that:____.
a. the objective assessment of the results of therapy.
b. a focus on overt specific behavior.
c. a formulation of precise treatment goals.
d. all of these.

Answers

Answer:

d. all of these.

Explanation:

What best describes the level of ems training that emphasizes use of advanced airway devices and some prehospital medication administration?

Answers

Answer: Quality Improvement

Explanation:

Quality improvement is the framework used to systematically improve care. Quality improvement seeks to standardize processes and structure to reduce variation, achieve predictable results, and improve outcomes for patients, healthcare systems, and organizations

Occlusal contacts that are made outside of the normal range of function in occlusion are called?

Answers

These kind of occlusions are called parafunctional contacts.

What are parafunctional contacts?

Parafunctional simply means "abnormal function".

Activities like thumb, finger, tongue, and object sucking are examples of parafunction (e.g. a dummy). It is defined as atypical oral habits or behaviors that have the potential to significantly alter the course of growth and development and have a lasting negative impact on a person's look and ability to operate normally.

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How can a child care professional introduce children to classical music? A. Allow them to interpret classical music through dancing
B. Use classical music during the music lessons only
C. Have them watch a classical music video like an opera
D. Introduce the composers but not the music itself

Answers

A. Allow them to interpret classical music through dancing
They need to move and hear the music

These glands are also known as eccrine glands and help maintain body temperature.

Answers

Eccrine glands are nothing but sweat glands:

one of two different kinds of sweat glands, which are only found in mammals. Body temperature is regulated by the sympathetic nervous system, which is in charge of the eccrine sweat gland. Eccrine glands produce water to the skin's surface when internal temperature rises, where it evaporates to reduce heat.

In such a these glands help to maintain the body temperature and prevent body heating as well.

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Antipsychotic drugs such as thorazine are often used to treat schizophrenia. Antipsychotic drugs are used as.

Answers

Answer:

Chlorpromazine which is under the trade name Thorazine is one of the antipsychotic drugs which is often used to treat schizophrenia. This drug works by blocking a variety of receptors in the brain, specifically dopamine receptors.

Explanation:

I am not sure if this is correct, hopefully it is. If not I apologize.

How many g of a medication should be provided if 400 mg is prescribed?

Answers

1 gram is equal to 1,000mg. So if we take 400mg/1,000mg= 0.4 grams should be dispensed

Tomatoes are best eaten raw, because cooking tomatoes destroys most of the nutrients and phytochemicals. True or false

Answers

It's false. Tomatoes are best eaten raw, because cooking tomatoes destroys most of the nutrients and phytochemicals.

Does cooking destroy nutrients?

Cooking also loses some minerals and vitamin A, albeit to a smaller level. Cooking has little effect on fat-soluble vitamins like D, E, and K. Boiling causes the most nutrient loss, but other cooking methods efficiently preserve the nutrient content of food.

How does cooking affect the nutrients in food?

Cooking breaks down parts of the fibers and plant cell walls in food, making it easier for the body to digest and absorb the nutrients. Cooking also improves the taste and aroma of food, making it more delightful to eat.

How are vitamins destroyed?

Some vitamins dissolve in water, therefore if you prefer to boil your vegetables, you will lose your vitamins to the cooking water. Boiling a potato, for example, might cause much of the potato's B and C vitamins to move into the boiling water.

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Doctors want to take a closer look at a schizophrenic patient’s brain to monitor the activity of neurotransmitters while she experiences hallucinations. First, they will give her an injection of a radioactive substance. Which technique will they use?.

Answers

Doctors want to take a closer look at a schizophrenic patient’s brain to monitor the activity of neurotransmitters while she experiences hallucinations. First, they will give her an injection of a radioactive substance. The technique they will use is positron emission tomography (PET).

What is positron emission tomography?

It is a technique that is used in nuclear medicine, it is an invasive technique since a drug that is radioactive is injected and that will analyze the distribution of this substance inside the body.

Usually, the substance accumulates in the organs, this absorption takes about an hour.

Therefore, we can confirm that the technique they will use is positron emission tomography (PET).

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Of the nine regions used by anatomists to divide the abdominopelvic cavity, this one is most superior and medial.

Answers

Of the nine regions used by anatomists to divide the abdominopelvic cavity, this one is the most superior and medial: The epigastric cavity

What is the epigastric cavity?

The bulk of the stomach, a portion of the liver, a portion of the pancreas, a portion of the duodenum, a portion of the spleen, and the adrenal glands are all located in the epigastric (upper stomach) region. When the diaphragm tightens during breathing, this area pushes out.

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10. Medication cannot be administered without a completed Medication Authorization Form.
A True
B False

Answers

Answer: A, True

“Child care programs must have a written policy for the use of any medication (prescription and nonprescription) that the facility keeps on hand to use with parental consent. This form documents such authorization of administration of medication for a child while in care.”

Medication cannot be administered without a completed Medication Authorization Form, which is a true statement (option A)as this is the document used to authorize the administration of medication to a patient.

What is the significance of taking medications?

Medication is one type of medical procedure that includes the taking of drugs that are useful for the patient's recovery, and there are several medications based on the need and requirements, such as the length of medications, their duration, and their dosage, which have a lot of impact on the patient. Taking medication helps the person come out of the injury, mental depression, etc. to live a real life, while overdosing sometimes causes death.

Hence, medication cannot be administered without a completed Medication Authorization Form, which is a true statement (option A)as this is the document used to authorize the administration of medication to a patient.

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