Junior Lab Technician Interview Questions and Answers

Normality is a measure of concentration used in chemical analysis.

• Normality is calculated by dividing the number of equivalents of solute by the volume of solution in liters.

• It is expressed in equivalents per liter (eq/L) or moles per liter (mol/L).

• For example, a 1 M solution of HCl is also a 1 N solution because HCl is a monoprotic acid and has one equivalent of acid per mole of HCl.

• However, a 1 M solution of H2SO4 is a 2 N solution because H2SO4 is a diprotic acid and has t...read more

Parameters in lipid profile include total cholesterol, HDL cholesterol, LDL cholesterol, and triglycerides.

• Total cholesterol measures the total amount of cholesterol in the blood.

• HDL cholesterol (high-density lipoprotein) is considered 'good' cholesterol as it helps remove LDL cholesterol from the arteries.

• LDL cholesterol (low-density lipoprotein) is considered 'bad' cholesterol as it can build up in the arteries and increase the risk of heart disease.

• Triglycerides are a type...read more

The ash content of ZNO varies depending on the source and method of preparation.

• Ash content is the residue left after burning a substance.

• The ash content of ZNO can be determined through ashing and weighing the residue.

• The ash content of ZNO can range from 0.1% to 5% depending on the purity and preparation method.

• The ash content can affect the properties and performance of ZNO in various applications.

Hb stands for hemoglobin, a protein in red blood cells that carries oxygen throughout the body.

• Hemoglobin is composed of four protein chains, each containing a heme group with an iron atom at its center.

• The iron in hemoglobin binds to oxygen in the lungs and releases it in tissues throughout the body.

• Hemoglobin levels are measured in grams per deciliter (g/dL) of blood and can indicate anemia or other health conditions.

• Formation of hemoglobin occurs in the bone marrow, where ...read more

Normal range of creatinine is 0.6-1.2 mg/dL for adult males and 0.5-1.1 mg/dL for adult females.

• Creatinine is a waste product produced by muscles from the breakdown of creatine.

• It is filtered by the kidneys and excreted in urine.

• The normal range of creatinine varies based on age, gender, and muscle mass.

• Abnormal levels may indicate kidney dysfunction or muscle damage.

• For adult males, the normal range is 0.6-1.2 mg/dL and for adult females, it is 0.5-1.1 mg/dL.

Water pH level is a measure of its acidity or alkalinity.

• pH scale ranges from 0 to 14, with 7 being neutral

• Water with a pH below 7 is acidic, while above 7 is alkaline

• pH level affects aquatic life and can be influenced by pollution

• Ideal pH level for drinking water is between 6.5 and 8.5

Gram stain is a laboratory technique used to differentiate bacteria into two groups based on their cell wall composition.

• Gram stain involves staining bacterial cells with crystal violet dye, iodine, alcohol, and safranin.

• Gram-positive bacteria retain the purple color, while Gram-negative bacteria appear pink/red.

• It is a commonly used method in microbiology to quickly identify and classify bacteria.

• Gram staining helps in determining the appropriate treatment for bacterial infe...read more

CBC stands for Complete Blood Count and RFT stands for Renal Function Test.

• CBC is a common blood test that provides information about the cells in the blood, including red blood cells, white blood cells, and platelets.

• RFT is a group of tests that evaluate how well the kidneys are functioning by measuring levels of creatinine, blood urea nitrogen, and electrolytes.

• Both CBC and RFT are important diagnostic tools used in healthcare to assess overall health and detect various med...read more