RRB Staff Nurse Mock Test - 2 - RRB NTPC/ASM/CA/TA MCQ

The hormone that controls the level of calcium and phosphorus in blood is secreted by parathyroid gland.

Parathyroid gland is tiny glands. It controls the body’s calcium level. Each gland is about the size of a grain of rice. Parathyroid hormone is the most important endocrine regulator of calcium and phosphorus concentration in extracellular fluid. This hormone is secreted from cells of the parathyroid glands and finds its major target cells in bone and kidney.

Social norms refer to the most frequently observed behavior in a society.

Social norms are shared standards of acceptable behavior by groups. Social norms can both be informal understandings that govern the behavior of members of a society, as well as be codified into rules and laws. Social normative influences or social norms, are deemed to be powerful drivers of human behavioral changes and well organized and incorporated by major theories which explaining human behavior.

Epistasis is an exception to Mendel's principle of segregation.

Penis is the male sex organ. It also acts as urinal duct. Clitoris of female is homologous to tip of the penis. In males’ penis and in the female clitoris is the homologous organ. By their structure, one can say they vary greatly but it’s not the case. They are responsible for the orgasm experienced by one during coitus.

The term “tabula rasa” highlights the importance of experience in shaping behaviour. In psychology, the term “blank slate,” or tabula rasa, actually has two meanings. The first refers to a belief that at birth, all humans are born with the ability to become literally anything or anyone. This belief downplays the effects of genetics and biology on the development of the human personality.

The nucleosome is the fundamental subunit of chromatin. Each nucleosome is composed of a little less than two turns of DNA wrapped around a set of eight proteins called histones, which are known as a histone octamer. DNA must be compacted into nucleosomes to fit within the cell nucleus.

Two molecules of acetyl co-A condense to form acetoacetyl co-A, which condenses with the third molecule of acetyl co-A to yield a six-carbon compound HMG co-A.

Anti psychotic drugs causes extra pyramidal symptoms as side effects.

Extrapyramidal symptoms (EPS) are also known as medicine-induced movement disorders usually caused by antipsychotic drugs.

These movements are the side effects of the antipsychotic drugs that make it difficult for an individual to perform their basic daily activities.

• AKATHISIA: - a person may experience restlessness, tense and unable to control his or her physical movement. The uncontrol movements include rocking on feet or rubbing face, tapping finger, and crossing or uncrossing the legs.
• DYSTONIA: - It is the involuntary muscles contraction. It includes eye blinking, tongue protruding, head twisting, and neck twist and extension. an individual can suffer choking or breathing difficulty when the muscles of the throat get affected.
• PARKINSONISM: - Symptoms are the same as Parkinson’s disease. The symptoms consist of tremor, slower movement, difficulty in speaking, facial stiffness, rigid muscles, excessive salivation, and change in gait.
• TARDIVE DYSKINESIA: - It is manifested by involuntary facial movements such as tongue-twisting, lip-smacking, chewing motions, cheek puffing, blinking eyes, and grimacing.

Prostate gland is unpaired gland.

It is a walnut sized gland. It is unpaired. It secrets fluid that nourishes and protects sperm. Prostate gland is an unpaired male accessory sex gland that opens into the urethra just below the bladder and vas deferens. During ejaculation it secretes an alkaline fluid that forms part of the semen.

When a convex surface fits with a concave surface, it is called Hinge.

• The knee joint is an example of a hinge joint that allows movement in one plane.
• In this knee joint, the bone doesn't get rubbed with each other.
• The hinge joint is a type of synovial joint which helps in bending and avoiding friction due to the presence of synovial fluid.
• Synovial fluid is a lubricating material that allows movement without getting rubbed.
• Bone combined with Ligaments, muscles, and tendons provides strength to the joint place.

Cholera is an infectious disease that causes severe watery diarrhea which can lead to dehydration and even death if untreated. It is caused by eating food or drinking water contaminated with a bacterium called Vibrio cholera.

The theory of cognitive development was proposed by Jean Piaget. Jean Piaget's theory of cognitive development suggests that children move through four different stages of mental development. His theory focuses not only on understanding how children acquire knowledge, but also on understanding the nature of intelligence.

On the basis of the Human Development Index (HDI) countries with high HDI are classified as developed.

• An index was developed to assess the countries on the basis of “Human development” is known as The Human Development Index (HDI)
• This index shows that a country is developed, is developing, or is underdeveloped.
• It captures three major dimensions of human development that are access to knowledge, long and healthy life, and a proper standard of living.
• HDI was developed by Pakistani economist Mahbub ul Haq.
• The HDI report was first released in 1990.

Malarial parasite is best obtained from a patient while temperature is rising sharply. When it gets inside the human body at the merozoite phase they enter the bloodstream and lysed RBCs and are distinguished by the high fever and eventually temperature rises. At this time most of the parasite is hanging around the bloodstream therefore it is the best time to gather the blood sample from the patient.

In a hospitalized patient on prolonged bed rest, the most likely cause of sudden onset shortness of breath and chest pain is pulmonary embolism. Pregnancy and prolonged inactivity both increase the risk of clot formation in the deep veins of the legs. These clots can then break loose and travel to the lungs.

A person suffering from common cold should always cover his mouth and nose with a handkerchief while sneezing.

By covering the mouth during coughs and sneezes and keeping hands clean can help prevent the spread of serious respiratory illnesses like influenza, respiratory syncytial virus (RSV), whooping cough, and COVID-19.

Germs can be easily spread by: Coughing, sneezing, or talking.

The probability of a couple having a son in their next pregnancy is independent of the genders of their previous children. Each pregnancy has an equal chance of resulting in a boy or a girl, assuming no genetic or external factors that could influence the gender ratio.
The probability of the couple having a son in their next pregnancy is: 50%

1 - 4 litre / minute is the recommended flow rate of oxygen via nasal cannula.

• The nasal cannula is a device used to deliver oxygen therapy, where the oxygen acts as a supplement to treat a medical problem, such as low oxygen saturation in the blood.
• Rate above 5 litres/min can cause discomfort, excessive dryness of the nasal passage, and ultimately to nose bleeding and the use of nasal cannula allows the patient to talk, eat and drink while the oxygen is delivering.
• The nasal cannula is made up of a lightweight plastic tube.
• One end of the tube is attached to the oxygen supply and the other end is having two small outlets which insert into the nostrils and the tube can be fixed at the back of the ear.
  

Registered nurse is a licensed medical professional who provides hands-on care in different medical and community settings.

A registered nurse (RN) is a nurse who has completed a nursing program and met the requirements of a country, state, province, or similar government-authorized licensing body to obtain a nursing license. The scope of practice of a registered nurse is determined by legislation and regulated by a professional body or council.

Glycine is abundantly found in collagen.

Each of the collagen peptide chain’s three amino acids is a glycine. As a result, it is a plentiful amino acid that is essential for collagen construction.

Glycine is involved in the production of DNA, phospholipids, and collagen as well as the release of energy. Glycine is integral to the formation of α-helices due to its simple side chain. Glycine is the most abundant amino acid in collagen triple helices.

A consumer co-operative store is set up by Registrar of Co-operative Societies.

We find that the child's image in the magic mirror has:

1. Head bigger and hence the mirror must be a concave mirror. A concave mirror here is producing an enlarged and erect image.

2. The middle portion unaltered and hence the middle part of the mirror must be a plane mirror.

3. The bottom part of the mirror produces a smaller image of the legs. The image is smaller since it is produced by a convex mirror. The convex mirror produced the erect and diminished image.

Private nurse attends an individual patient, usually on a fee-for-service basis, and also may specialize in a specific class of diseases.

Private duty nursing is the employment of nurses by individual patients for the delivery of care. Patients hire their own nurse, who cares for them either in their homes or in the hospital. Patients pay the nurse for her services with cash, based on a predetermined fee. The nurse, generally employed for the duration of an illness, cares for only one patient at a time. In essence, the private duty nurse deliver highly individualized care to paying patients for as long as a patient need and could pay for the nurse’s services.

To initiate a kinase protein enzymatic cascade, only receptor tyrosine kinase directly phosphorylates tyrosine.

Receptor tyrosine kinases (RTKs) are a subclass of tyrosine kinases that are involved in mediating cell-to-cell communication and controlling a wide range of complex biological functions, including cell growth, motility, differentiation and metabolism.

The control of interest of banks is based on the recommendation of Narsimha Committee, with the aim to examine all aspects of the financial system's structure, system, functions, etc.

When a drug binds to a receptor to produce a pharmacologic effect, the drug may be called an Agonist.

Agonist and blocker are synonymous. An agonist is a drug that activates certain receptors in the brain. An agonist is a medication that mimics the action of the signal ligand by binding to and activating a receptor.

People don’t use drugs to simply die. The reasons for Drug Abuse include Peer Pressure, Overcoming frustration or depression, for Adventure, for a feeling of pleasure, excitement and Euphoria.

Aplastic anemia is the result of a hypersensitivity reaction and is often irreversible. It leads to pancytopenia, a severe decrease in all cell types: red blood cells, white blood cells, and platelets. A reduced number of red blood cells causes hemoglobin to drop. A reduced number of white blood cells make the patient susceptible to infection. And, a reduced number of platelets cause the blood not to clot as easily. Treatment for mild cases is supportive. Transfusions may be necessary. Severe cases require a bone marrow transplant.

Post-1991 LPG reforms the tertiary sector has grown more than others. It contributes about 54% to GDP employing 31% workforce. The highly educated English speaking labour in the country has taken advantage of this growth.

LAC (Line of Actual Control) is the effective border between India and China.

• The LAC (Line of Actual Control) is the demarcation that separates Indian-controlled territory from Chinese-controlled territory.
• LAC is the demarcation that was formed after the 1962 Sino-Indian War and is part of the Sino-Indian border dispute.
• The term is said to have been used by Zhou Enlai in a 1959 letter to Jawaharlal Nehru.