Honors Forensic Science

Honors Forensic ScienceNameHair Analysis for Heavy MetalsGeneral BackgroundDetection of Heavy Metals in Hair SamplesHeavy metal toxins such as arsenic and thallium commonly enters the body through ingestion. These toxins pass through the stomach and are absorbed by the blood stream. Once in the bloodstream, the toxins travel to all parts of the body. Heavy metals have a high affinity to bind to the amino acid cysteineFigure 1: Cysteine, an essential amino acid.Keratin, the major structural protein in hair, contains many cysteine molecules, and therefore, is one of the main accumulation sites of these heavy metals.Image result for keratinFigure 2: Keratin, the major structural protein in hair.In simpler terms, heavy metal toxins like arsenic and thallium are “trapped” inside the keratin inside the strands of hair. Therefore, hair analysis is a great way to determine the presence of heavy metals in a person’s system.Image result for contamination in hair strandsFigure 3: Toxins trapped in the bloodstream are carried to the scalp. When at the scalp, the toxins are bound to the keratin, through the composite cysteine molecules, which makes up the structural integrity of a strand of hair. As the hair follicle grows, the trapped toxins are suspended in the individual strand of hair where they can then be detected through forensic toxicology analysis.Hair grows at approximately 1.3 cm /month . Hair keratin that is produced today will not protrude through the scalp for one week. This indicates that if a hair sample tests positive for toxins directly at root, the exposure occurred just one week prior. If the presence of heavy metal toxin does not appear until 1 inch away from the scalp, the exposure occurred 2 months prior, and so on.How to Analyze a Hair Sample1. A hair sample is collected for analysis. Approximately 1 gram of hair is needed for analysis (this is about 2000-5000 strands of hair!). Hair found at the back of the head offers the best results for analysis. Why do you think the hair found here offers the best results? (take your best guess)2. In the lab, the individual strands of hair are split and analyzed under a microscope. The microscopic analysis ensures there is a contaminant present in the hair and is in need of further elemental testing.3. The overall chemical makeup of the hair is then identified using mass-spectrometry to determine the elemental analysis inside of the strands of hair.ProcedureUsing the patient’s symptoms and the chemical makeup of the toxic metals found in a hair sample, it is up to you to determine how the patient died.A male, aged 40, went to the hospital complaining of abdominal pains and muscle cramps, accompanied by overwhelming nausea and vomiting. While at the hospital, his health began to decline rapidly. His hands began to turn brown and scaly and his fingers and toes felt like they were always on fire. After a couple days, his body shut down resulting in a coma after he fell into cardiac arrest. The blood supply to his brain eventually stopped and his family decided that it was time to pull the plug.The hospital toxicologist knew they needed to perform an autopsy to determine that exact cause of death, although he already had an idea in mind. The toxicologist has suspicions that the patient was poisoned and sent samples of the patient’s hair to the lab for analysis.Below are the results the lab determined to in the chemical makeup of the patient’s hair sample:Lab Questions1. What major symptoms did the patient exhibit that made the toxicologist believe the patient was suffering from a poisoning?2. The reference interval is the maximum amount of heavy metal exposure a person can have in their system before symptoms of acute poisonings begin to appear. Analyze the table above and indicate which heavy metal toxins are above the maximum in the patient’s system (there is more than 1).3. Of the heavy metal toxins found in the patient’s system, what heavy metal toxin do you believe is the reason for the death of the patient? Why?After the patient passed away from the poisoning, the forensics team began their search to figure out the cause of the poisoning. Was it an accidental exposure? Was it deliberately done? The forensics team traced the patient’s whereabouts in the weeks leading up to the onset of the symptoms of a poisoning to determine the cause. The patient was an employee for the World Health Organization. At his job, he was responsible for traveling to different communities and gathering water samples for routine analysis to ensure the water quality was within quality range. At one particular site, the quality of water appeared to be contaminated with heavy metals that were well above standard amounts. A new drilling project recently began very close to the water source resulting in a runoff of the metals naturally found in the soil. The patient accidentally fell into this water source while collecting his routine analysis samples, ingesting some of the water.4. How did the patient get high levels of toxins into his system resulting in his death? Was the poisoning an accident or did someone deliberately try to poison him?For more information on Honors Forensic Science check on: https://en.wikipedia.org/wiki/Forensic_science

DNP Role Presentation

Don't use plagiarized sources. Get Your Custom Essay on
Honors Forensic Science
Just from $13/Page
Order Essay
Calculate your paper price
Pages (550 words)
Approximate price: -

Why Choose Us

Quality Papers

At Acme Writers, we always aim at 100% customer satisfaction. As such, we never compromise o the quality of our homework services. Our homework helpers ensure that they craft each paper carefully to match the requirements of the instruction form.

Professional Academic Writers

With Acme Writers, every student is guaranteed high-quality, professionally written papers. We ensure that we hire individuals with high academic qualifications who can maintain our quality policy. These writers undergo further training to sharpen their writing skills, making them more competent in writing academic papers.

Affordable Prices

Our company maintains a fair pricing system for all academic writing services to ensure affordability. Our pricing system generates quotations based on the properties of individual papers.

On-Time delivery

Acme Writers guarantees all students of swift delivery of papers. We understand that time is an essential factor in the academic world. Therefore, we ensure that we deliver the paper on or before the agreed date to give students ample time for reviewing.

100% Originality

Acme Writers maintains a zero-plagiarism policy in all papers. As such, Acme Writers professional academic writers ensure that they use the students’ instructions to deliver plagiarism-free papers. We are very keen on avoiding any chance of similarities with previous papers.

Customer Support 24/7

Our customer support works around the clock to provide students with assistance or guidance at any time of the day. Students can always communicate with us through our live chat system or our email and receive instant responses. Feel free to contact us via the Chat window or support email: support@Acme Writers.

Try it now!

Calculate the price of your order

You will get a personal manager and a discount.
We'll send you the first draft for approval by at
Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Samples

Our writers complete papers strictly according to your instructions and needs, no matter what university, college, or high school you study in.

Categories
All samples
Analysis (any type)
Argumentative essays
Dissertation/Dissertation chapter
Analysis (any type)
Advantages and disadvantages of lowering the voting age to thirteen
Undergrad. (yrs 1-2)
Political science
4
View this sample
Argumentative essays
Is euthanasia ethical or not?
Undergrad. (yrs 3-4)
Nursing
3
View this sample
Dissertation/Dissertation chapter
Videoconferencing as a teaching tool
Undergrad. (yrs 3-4)
Education
10
View this sample

Our Homework Writing Services

Acme Writers holds a reputation for being a platform that provides high-quality homework writing services. All you need to do is provide us with all the necessary requirements of the paper and wait for quality results.

Essays

Essay Writing Services

At Acme Writers, we have highly qualified academic gurus who will offer great assistance towards completing your essays. Our homework writing service providers are well-versed with all the aspects of developing high-quality and relevant essays.

Admissions

Admission and Business Papers

With Acme Writers, we will help you secure a position at your desired institution. Our essay writing services include the crafting of admissions papers. We will still help you climb your career ladder by helping you write the official papers that will help you secure a job. We will guide you on how to write an outstanding portfolio or resume.

Editing

Editing and Proofreading

Acme Writers has a professional editorial team that will help you organize your paper, paraphrase it, and eliminate any possible mistakes. Also, we will help you check on plagiarism to ensure that your final paper posses quality and originality.

Coursework

Technical papers

Acme Writers harbors professional academic writers from diverse academic disciplines. As such, we can develop homework writing services in all academic areas. The simplicity or complexity of the paper does not affect the quality of homework writing services.